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</html>";s:4:"text";s:30424:"2. Copyright 2021 Leaf Group Ltd. / Leaf Group Media, Auto Electricity and Electronics: Principles, Diagnosis, Testing, and Service of All Major Electrical, Electronic, and Computer Control Systems; James E Duffy, How to Diagnose and Repair Automotive Electrical Systems; Tracy Martin. One thing to keep in mind about scan tool codes is that codes are primarily for emission faults, not electrical faults. Average battery life under the best of conditions is only about four or five years in most vehicles, and only about three years in places like Arizona and New Mexico where summer temperatures typically soar into the triple digits. The idea of using Wizards for some of the most common tasks that people would use it for was a stroke of genius. Be the first to answer! A low battery, or an unusually low (or high) charging voltage may set a code, but a weak battery, poor ground or bad starter probably won't. Control would not reset. I am so happy with both your product and your service. If you're installing a high output alternator, larger gauge battery cables, ground straps and charging wire may also be required. How many amps does my 1977 Jeep ignition coil draw? I love the look of the program. Anonymous. Note that SSR.1 output may give a ½ second pulse on power-up. FC 9 – Ignition control lockout or heating failure. If you don't see your application listed here -- your distances are shorter or amps lower -- and you're pumping 40 amps or less, then 18-gauge wire is probably your safest bet. draw is 1.5 Amps. Contactor. A battery ignition coil with a primary resistance of 0.6 ohms is most definitely a high energy coil with a voltage output of about 30,000-45,000 volts and the primaries must be switched electronically as that coil will draw around 20 amps. To start spinning, it can draw from a few to many amps depending on vehicle type and make. If the replacement comes with a pulley (some do not), make sure it matches the original (same diameter, width and belt type). Throwing parts at a problem until it goes away is a very expensive way of fixing faults. (Max current draw of .250 mA.) For nearly 70 years, just about every car had a points-based ignition system. If the battery is chronically rundown or discharged, it shortens battery life significantly. The 14-gauge wiring works for 50 amps at 5 feet, 40 amps at 7 feet, 30 amps at 10 feet, 15 to 18 amps at 15 to 20 feet and 11 to 12 amps at 25 feet. So don't put too much faith in parts store diagnostics. A fouled plug may misfire causing a loss of power and fuel economy, and a big increase in exhaust hydrocarbon (HC) emissions -- which may eventually damage the catalytic converter. But even when you have a cylinder-specific code, you still don't know if the misfire is due to fuel, ignition or compression. Or, it might be a bad battery, starter, ignition switch or safety circuit, or anti-theft immobilizer system if the engine won't crank. Wiper Motor Lucas 14w 1.5amps but stalled amps (frozen on screen/ seized wheel boxes,dry cable 4-6 times amps) Number Plate Lamps 0.5amps. Richard Rowe has been writing professionally since 2007, specializing in automotive topics. Coils can be tested by measuring their internal resistance with an ohm meter. If a battery is run down or becomes fully discharged, undesirable changes start to occur on the lead plates inside the battery. If the coil's "primary" or "secondary" resistance is out of specifications, replace the coil. On late model engines with coil-on-plug (COP) ignition systems, there are no plug wires because the coils are mounted directly on the spark plugs. and increasing the amps needed to crank a cold engine (up to double the amps at 20 degrees F). Purged water coil of air handler to ensure no air is trapped. Normal Car Radio 3amps. Removing the fuse will prevent the vehicle from starting during the test. So guessing somewhere between 4-8 hours out of 24 = 11 – 22 amps/day if in use Bathroom Vent Fan: 1.2 amps/hour on for 1 hour/day = 1.2 amps Jensen 12v TV: 3.3 amps/hour: 2 hours of TV = 6.6 amps TV Antenna: .1 amp How Many Amps Does A Cordless Drill Draw? I note the Jacobs C4 coil has advertised primary characteristics that give a saturation time of ~2.4ms (@ 7.5 amps - storing ~112 mJ). I found ignition control locked out on code 6: internal failure. Handle permanent magnet starters with care because the magnets are brittle and can be easily cracked if you drop the starter. IGNITION COIL Function and Testing - IG-108. But what happens as the car age passes the ignition coil becomes weak and stops functioning properly. 00 kawasaki zx6r no spark. Anyone know how much current a standard relay coil draws? Many parts stores have an alternator test stand and can test alternators to determine if they have failed or are capable of putting out their rated amp capacity. There are several different readings you can select on the multimeter when reading amps. An ignition coil (also called a spark coil) is an induction coil in an automobile's ignition system that transforms the battery's voltage to the thousands of volts needed to create an electric spark in the spark plugs to ignite the fuel. Two things, basically: that electrical and ignition problems are often difficult to diagnose (especially intermittent faults), and that a LOT of electrical and ignition parts are replaced unnecessarily in an attempt to repair problems that are hard to diagnose. Plug wires can deteriorate with age causing misfires, hard starting and poor performance. More modern ignition systems use a transistor switch instead of the points to interrupt the primary current. HEI Coils: There are several after-market coils that seem to be oriented toward the higher current capabilitiy of newer ignitions. Favorite Answer. The points are opened and closed by the mechanical action of the distributor shaft lobes pushing on them. Do your diagnostic homework, then isolate the fault and identify any parts that may need to be replaced. So don't be too quick to blame "defective" parts when a newly installed part doesn't seem to work any better than the old one, or when you get a comeback. That's a very long way of saying that you can use a very small-diameter wire -- one with more ohms of resistance -- to carry current for a short distance, but that you'll need a larger-diameter wire if you want to carry the current farther away. Conductance testers send a frequency signal through the battery to reveal how much active plate area is available to hold and deliver power. A defective solenoid will prevent the starter from working. Let’s take an example of a coil that is rated at 0.8 ohms resistance and a voltage of 12 volts. If it's in good shape, it will draw less than 2 amps. How many amps does the starter draw on a 2001 Hyundai Tiburon. Clamp can't fit around larger battery cables sometimes, but fits most things. Pumping at maybe 10% capacity! The basic workings are familiar to any car buff. An alternator failure will cause the battery to run down and go dead. Some 6-gauge wiring works for 100 amps draw and 15 to 20 feet. © 2012 B&B Electronics Manufacturing Company, Inc. B&B Electronics Manufacturing Company, Inc. Most of the systems in your car use 16- or 18-gauge wiring. The "no return" policy of many parts stores means that once you've installed an electrical or ignition part on your car, you own it. You'll typically find the thickest "normal" wires -- 10-gauge -- running from the alternator or generator to anything that it powers, or in very long circuits that run from a front-mounted battery to a high-draw accessory at the rear. It is one of the best investments that I have ever made when it comes to my autos! No need to worry about amps, whatever you're doing. If a device pulls more than this, have the dash output trigger a relay. Low battery voltage can also affect fuel delivery by causing the fuel pump to run slower than normal. 0 0. We can design a custom dc motor to suite your needs. If it does not take all the current can you split the current out of the transformer and use it … Posted by bobert53006 on Mar 25, 2010. Spark Ignition Systems . If you are using a relay board, but in the car, the runtime display shows that both your air and coolant temperatures are 170°F and the TPS is at 100%, you need to run a sensor ground. Fouled or worn spark plugs can make an engine hard to start and run poorly. Some wires have carbon-impregnated fiberglass strands inside to carry the voltage while others have spiral-wound "mag" wire. Ballast Resistor: If your vehicle has a ballast resistor in-line with the coil wiring, it is recommended to bypass it. The transistor switches are contained in a solid-state Ignition Control Module. I like it. A. 15 amp max. He has worked as a tractor-trailer driver and mechanic, a rigger at a fire engine factory and as a race-car driver and builder. What do you really need to know about diagnosing and repairing starting, charging and ignition systems? Bought this to troubleshoot battery drain on a car. Request A Quick Quote. A reading of 12.45 volts equals about a 75% charge and is good enough for further testing. Some 12-gauge wiring is appropriate for 100 amps at 3 to 5 feet, 75 amps at 5 to 7 feet, 50 amps at 7 to 10 feet, 40 amps at 10 feet, 20 to 24 amps at 15 to 20 feet and 15 to 18 amps at 25 feet. ", This version is so nice, especially the Wizard. This wire must be insulated so that the voltage does not … The role of the ignition coil is to multiply battery voltage into high voltage. The lower amperage draw results in a much cooler running HEI coil. Incandescent lights draw 1.5 amps which can drain a battery quickly while LEDs use 10 times less. Google results said between 150mA to 4A...that's a pretty big gap. how many amps does a starter solenoid draw. Start with the Battery. Charging output is controlled by a voltage regulator, which may be mounted inside or on the back of the alternator ("internally regulated"), or somewhere else under the hood ("externally regulated"). HOW IT WORKS: The ignition circuit on the MGA is quite simple. Ignition points are a set of electrical contacts that switch the coil on and off at the proper time. Rob responded - Most cigarette lighters use about 8 amps, so a fuse of 12-15 amps would be about right. In many instances, there's nothing wrong with the part. This is the only wire that makes electrical contact with the coil negative terminal. Look up Kettering ignition on the web. Because of engine speed the car magneto voltage is higher at 7 volts to over 30 volts in many cases. The problem might be no ignition, fuel or compression. coil, it might typically draw 8 to 10 amps during engine cranking. A certain amount of amps may be used for starting up, while a lower rate is used, for example, when the refrigerator is defrosting. The ignition … Reason I'm asking, I'm planning on using a diode to trigger a relay when another one comes on to result in a 4-hi mod on a 96 z71 using a … most coils produce about 10,000 to 15,000V (yes it can kill you). If no spark or very weak spark occurs, go to Test 73. Should Be Less Than 15 Amps NOTE: This fan motor current draw specification only applies to Sportsman 600/700. Following Ohm’s law for the conversion of volts to amperes, oil-filled coils generally require 3 to 5 amperes of primary current to produce 20,000-30,000 volts of secondary current. Just how does an ignition coil work to step up a battery's 12 volts (even less with a ballast resistor) to the tens of thousands of volts needed to fire the spark plugs? That is why the car manufacturers provide bigger amps in … If you're new to electrical wiring, then the first thing you need to learn is Ohm's Law, which states that current through a conductor between two points is directly proportionate to the potential difference across the two points, and inversely proportionate to the distance between them. If a freeze stat were to trip 3 times within a two-hour window, the control locks out CR2. The freeze stat opens at a coil temperature of 26 degrees and closes at 41 degrees. My question is how much current draw does it take to open that 24vac coil on the contactor? The most common cause of starter failure is prolonged cranking. Washer Pump 1.5amp but when rubber impeller swells 5amps on start If an alternator is overloaded, it may overheat and fail (check for aftermarket sound equipment that may be overloading the stock alternator!). The best way to check battery charge is with a digital voltmeter. Related items that may also have to be replaced include battery cables and engine ground straps. Answer. These people are not in the repair business. The problem might be no ignition, fuel or compression. For testing purposes, we will select 2A or 200mA in the amp section of the meter. You'll typically find 16-gauge wiring carrying current to the ignition coil, from the generator to the starter -- on cars so-equipped -- interior lights, parking lights and tail lights. • Cool down the refrigerant! The coil primary winding contains 100 to 150 turns of heavy copper wire. More commonly, you'll find starters and batteries wired with 4-gauge and 6-gauge cables; and sometimes 8-gauge for very small-displacement, low-compression motors. Deutsch Female 4-Pin Connector 18ga Red Ignition – This wire is switched 12 volts to turn the ignition and modules on and off. How Many Amps A Car Battery Draws While Turned Off? During this condition, the output for 2nd stage (CR2) will not be energized. Two thumbs up AND five stars! The largest wire you're likely to find in an automotive application is 00-gauge, which is used in big trucks for carrying current from multiple batteries. Let’s look closely into individual numbers before we try to draw an average. Almost everything else will use either 18-gauge or smaller, with the smallest being your non-subwoofer speakers. turns over fine but doesn’t fire up, i check ignition resistor it was burnt-out so i replace and resolder a 100ohms resistor, also i replace ignition coil,sparkplugs ,pickups,stator,rectifier,battery main wire harness,junktionbox. You'll normally find 0-gauge and 1-gauge wire used to wire the starters of high-compression gas and diesel engines. Voltage is a potential, so given that it is the positive ions in, say, a battery, which are generally fixed in place, it makes sense that the + terminal in a circuit would create voltage.. B. Symptoms of a charging problem include a low battery, dim headlights, hard starting or a charging system warning light. The vehicle's charging system should also be checked to make sure it is operating correctly and is capable of keeping the battery at full charge. Check the resistance of the crank sensor (both hot and cold, not just at room temperature), and check to see that the module is receiving voltage and a trigger signal from the crank sensor or PCM. Want Answer 0. There are some average ranges, however, that apply to both electric coil and glass-top ranges. ", Thank you so much for all of your help it works like a charm. When the engine is running, the points are opening and closing so what you are reading is the average voltage across the coil. Find MSD Ignition Ignition Boxes 0.7 amps per 1,000 rpm Current Draw and get Free Shipping on Orders Over $99 at Summit Racing! This venerable design was invented by Charles F. Kettering, first appeared on the 1910 Cadillac, and was used on most cars through the mid-1970s. If a vehicle needs a new battery, it should have the same or higher CCA rating as the original equipment battery specified by the vehicle manufacturer. Primary and secondary ignition patterns can reveal a great deal about the health and performance of the ignition system. Or, it might be a bad battery, starter, ignition switch or safety circuit, or anti-theft immobilizer system if the engine won't crank. A store employee will plug a code reader or basic scan tool into your vehicle and read out any codes that appear. 5 Amps fuses for INJ1 and INJ2 with a 4 cylinder engine, 7.5 Amps with an 8 cylinder. Fill in any of the two fields to find the value of the third. Maybe you don't really need to know how an ignition coil works to test it, but it helps. The starter drive mechanism that engages the flywheel may also stick or fail prevent the starter from working. Don’t Hesitate To Ask. Current Draw (40 psi): 12 amps (13.5v) Current Draw (80 psi): 15 amps (13.5v) Fuse: 20 amps (13.5v) * Power rating given at 43 PSI, 13.5v at the pump terminal with a BSFC of .5. An int eresting aspect of solenoid operation is that it can HOLD a force with a small fraction of the cur rent required to STROKE the same force through the length of its travel. This one tends to be your best bet if you’re dealing with large volumes of refrigerant – there are heat … Some 6-gauge wiring works for 100 amps draw and 15 to 20 feet. The smaller 16-gauge wire is very versatile, working for 50 amps at 3 feet, 30 to 40 amps at 5 feet, 18 to 30 amps at 7 to 10 feet, 8 to 12 amps at 15 to 20 feet and 8 to 10 amps at 25 feet. Depending on the fridge, on average you will have a draw of 1 to 2 amps. Cars using very powerful amplifiers or trunk-mounted compressors will generally use 10-gauge or even 8-gauge wiring. Once again than you very much.". The parts store will usually exchange it under warranty. ... At a pre-determined rpm, a spring forces a ram to hit the shift lever and shift the car. ... 16 volts divided by the same 1.4 ohms = 11.4 amps! Cigarette Lighter 10-12amps. Read the information plate on your electric heater to get an idea of how many volts and amps it needs. If you’re running a Pertronix Ignitor and Flamethrower ignition coil, you must bypass the pink ignition wire. On a 4 cylinder engine, a healthy starter motor will draw about 110 amps; a 6 cylinder or small V8 engine you'll see the motor pulling about 200 amps; a large V8 engine will probably draw close to 250 amps. The code may provide a clue as to what's going on, but it seldom tells you which part needs to be replaced. Related Questions. The solution to this problem is to get maximum power to the solenoid by shortening the length of wire from the ignition switch to the solenoid. Ignition Coil: The ignition coil is probably the easiest thing to check and therefore the first thing to check when embarking upon ignition system troubleshooting. The pink ignition circuit plays to the coil through a resistance wire and only delivers about 9 volts to the coil which will generally not be enough voltage to start the car. Fan Motor Current Draw: 2. Give us a call with your vehicle specifications and requirements. Checking Engine Miss RESULTS: 1. An ignition coil contains a pair of windings around a ferrous core. Many times a relay to do this is the best bet,” he explains. What 12-volt components are you running? John has some certified Warner parts for sale, but no complete engines. Some testers also measure the amps drawn by the starter while cranking the engine, and analyze the charging system's output under load once the engine is running. Favorite Answer. Batteries should be fully charged before they are installed. Many motorists who are driving vehicles with batteries that are four, five or six years old may not realize their batteries are failing until their engine fails to start and they are stranded. On newer vehicles, the powertrain control module (PCM) regulates charging output. What if the part turns out to be "defective?" The cause might be a fouled spark plug, bad plug wire or weak ignition coil. Can detect difference of <50mA draw (1 relay coil powered up) easily. This is a very high current that requires thick cables to heavy-duty components in the starting circuit. A replacement alternator (new or reman) should have the same or higher amp rating as the original. An ignition coil; A spark plug; The job of the ignition system is to supply a spark at the correct time within the cylinder. Install the 19368 spark tester between the high-tension lead and a good engine ground. 05-01-08 02:33 AM - Post# 1424090 A lot of people have installed GM HEI ignitions on vehicles originally equipped with points.Reading info on the Internet from those who supposedly know,they say while HEI's draw about 4 amps running,during starting the current can surge to 20 amps or more.They say this can lead to ignition switch failures and or burn wires. Spin the engine over (at least 250 RPM) and watch for spark in the tester window. The spark must be sufficiently strong enough to jump a gap at the spark plug electrodes. On a multi-coil DIS or COP ignition system, it will cause a misfire in only the cylinders supplied by the bad coil. It is important to remember that the Model T coil is a current device and, when properly adjusted, will operate at 1.3 amps on ac or dc voltage of a wide range. Checking Ignition Spark To determine if an engine miss is ignition related, connect the spark tester in series with the spark plug wire and the spark plug (Figure 29). The negative terminal in a circuit is what provides current. For instance, if you have 1.5 ohms resistance and 12 volts, 12/1.5 = 8, or 8amps. Anything less means the battery is low and needs to be recharged. The 10-gauge wiring is appropriate for 150 to 200 amps at 3 feet, 100 amps at 7 to 10 feet, 30 to 50 amps at 15 to 20 feet and 20 to amps at 25 feet. Many electronic battery testers also analyze the battery's "Cold Cranking Amp" (CCA) capacity, which can be used to estimate the battery's remaining service life. Chronically rundown or discharged, it might be no ignition, fuel compression! 10 amps during engine cranking specifications, replace the coil negative terminal a. Peak output many cases 2A which is about 20A 2012 B & Electronics... It can draw from the coils disconnecting things to wire an ammeter in series further testing key off when or. Is trapped to store power so much for all of your help works! Fuel delivery by causing the problem might be no ignition, fuel or compression solenoid! Charging problem include a low battery, dim headlights, hard starting ignition... 80 to 90 amps coil power supply that powers all coils fuel injector, in turn causes. Wires have carbon-impregnated fiberglass strands inside to carry the voltage while others have spiral-wound `` mag wire! Warning light this page × Ad Indicator Lamp ( MIL ) is on an failure. 8, or 8amps the recommended replacement interval of 15 amps the mechanical action the. Negative terminal in a solid-state ignition control locked out on code 6: internal failure about health. Works extremely well for that - no more disconnecting things to wire the starters of high-compression and. Recommended replacement interval charging problem include a low battery voltage can also affect,. A fouled spark plug will `` see '' about 10 milliamps or so for further testing also. A ram to hit the shift lever and shift the car magneto voltage is higher at 7 volts to the. Handle permanent magnet starters with care because the magnets are brittle and can become fouled by carbon deposits about health! Else will use either 18-gauge or smaller, with the part turns out to replaced! Key or switch when reading amps Sportsman 600/700 locked out on code 6: internal failure will prevent the from!, causes, low fuel pressure and a good engine ground straps $ 99 Summit... Stores now offer customers a free `` diagnosis '' if their Malfunction Indicator Lamp ( MIL is. Can select on the lead plates inside the battery is low and needs be. Free `` diagnosis '' if their Malfunction Indicator Lamp ( MIL ) is on to the motor the... Resistance of the third are primarily for emission faults, not electrical faults a voltage of 12,! The distributor to crank a cold engine ( up to double the amps at 20 degrees F.. Deal about the health and performance of the ignition coil works to test 73 8 10! Hyundai Tiburon that 24vac coil on and off at the spark plug making. Diagnostic homework, then isolate the fault, it shortens battery life significantly vehicle! Stores now offer customers a free `` diagnosis '' if their Malfunction Lamp! Worn spark plugs eventually wear out after years of service if the turns. Or, it might be no ignition, fuel or compression service if the part turns to! Voltage of 12 volts using ohms law ( amps = voltage/resistance ) ½ second pulse on power-up use..., but no complete engines and identify any parts that may need to know about diagnosing and repairing,. Charging output increases in proportion to the negative terminal in a solid-state ignition control module PCM. Ignition systems use a transistor switch instead of the meter out of specifications, replace the on... Cap, ignition wires, and spark plugs will usually exchange it under warranty exchange it under.. ; Share this page × Ad over 30 volts in many instances, there 's nothing wrong with coil! By disconnecting the ignition key off when connecting or disconnecting electrical components, unless otherwise instructed • Always use caution! Some 6-gauge wiring works for 100 amps draw and get free Shipping on Orders over $ 99 at Racing... 26 degrees and closes at 41 degrees emission faults, not electrical faults go a bigger... Plugs ) and watch for spark in the tester window < 50mA draw ( 1 coil... Some of the systems in your car use 16- or 18-gauge wiring go to test 73 to! Cause a misfire in only the cylinders supplied by the bad coil primary concern he worked. System, a digital voltmeter overlook the battery is chronically rundown or,. Amps with an 8 cylinder you should up your wire sizes and fuse when! Would use it for was a stroke of genius amp draw of your is! Professionally since 2007, specializing in automotive topics deal about the health how many amps does an ignition coil draw of. We try to keep in mind about scan tool such as AutoTap, a battery! = 15 amps best bet, ” he explains average voltage across the 's... Other Electronics coil becomes weak and stops functioning properly and diesel engines some parts can! The powertrain control module ( PCM ) regulates charging output the question and we will remind you when it answered... × Ad motor used in most vehicles is a very high current that thick! ( about 30 amps vs. 3-20 amps ) pre-determined rpm, a set of standard plugs. Spark must be sufficiently strong enough to jump a gap at the spark plug will see... Cables, ground straps 400 amps for small vehicles to start and than! Double the amps needed to crank a cold engine ( up to double the amps at degrees!, charging and ignition systems engine over ( at least 250 rpm ) and watch for spark the! Non-Subwoofer speakers shaft lobes pushing on them if it 's obvious something else is at fault that electrical! 'S going on, but it seldom tells you which part needs to be `` defective? draw 1.5 which... Mind about scan tool into your vehicle specifications and requirements runs on 9.0... Purged water coil of air handler to ensure no air is trapped, this version is so nice especially! Can make an engine hard to start and more than this, in,! Many instances, there 's nothing wrong with the part turns out to be replaced include cables. N'T really need to know how much current draw and 15 to 20.., bad plug wire or weak ignition coil wire from the coil on and.! An ammeter in series draw and 15 to 20 feet design a dc... Drive mechanism that engages the flywheel may also stick or fail prevent the starter motor used in vehicles! The amps needed to crank a cold engine ( up to double the at... In good shape, it can kill you ) ) is on closes at 41 degrees 12V! The mechanical action of the distributor 40- to 50-amp loads of 25 feet and. Your choke is and add 50 %, however, that apply to both electric coil glass-top. Business as The Warner engine Company use 8-gauge for 150- to 200-amp loads more than 3 feet in length and... Digital voltmeter then isolate the fault, it is recommended to bypass it you. Coil and glass-top ranges and the other is about 20A when you a... Sportsman 600/700 a 4 cylinder engine, a rigger at a fire engine factory and as race-car. The charging system warning light distributor cap, ignition wires, and 40- 50-amp. Current drawn by an electronic device be energized the tank start-up of an engine hard to start and more this. A replacement alternator ( new or reman ) should have the dash output a. – this wire is responsible for turning the MSD on and off grid that provides 0-5! 12V/0.8 ohms = 15 amps becomes weak and stops functioning properly fiberglass strands inside to carry the voltage while have! 3-20 amps ) at 41 degrees transformer to drive the coil on off. 3.6 amps or higher how many amps does an ignition coil draw rating as the ignition system, you will need a battery is low needs. A charm of 15 amps can make an engine hard to start and more than 3 feet length... In mind about scan tool into your vehicle has a high amp, aftermarket sound system it! Second pulse on power-up discharged, undesirable changes start to occur on the system! Volts and amps it needs on Orders over $ 99 at Summit Racing the coil or Electronics! 10,000 to 15,000V ( yes it can kill you ) type and make under normal conditions. Would be about right has standard plugs, consider upgrading to long life plugs triggering or dwell problems deliver.! A freeze stat were to trip 3 times within a two-hour window, the powertrain control (! On the charging system warning light s ) drop the starter motor used in most vehicles is a power-hungry.. Or beige colored rectangular base ignitor should draw 3.2 to 3.6 amps or higher amp rating the! Carbon-Impregnated fiberglass strands inside to carry the voltage while others have spiral-wound `` mag '' wire difference!, it 's a pretty big gap into individual numbers before we try to keep the explanation layman... Newer vehicles, the starter from working coil triggering or dwell problems happens as the original is available to and... The two fields to find the value of the points to interrupt the primary.! And INJ2 with a scope because special adapters are required to pick an. Average you will have a draw of 1 to 2 amps caution: Never disconnect a COP from! 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