Ignition modules come in more than one configuration and size, depending on your particular car make and model. The Thick Film Integrated Ignition Modules TFI's were notorious for overheating and failing when they were mounted on the distributor body. Be sure to fix the root cause of the oil leak, so this problem does not reoccur with the new ignition parts installed. Again these are a failed module or defective ignition coil. Her commute was 134 miles. the resistance in the secondary is too high; 2.) You can test for overheating while the car still runs. Each ignition coil makes a spark for two companion cylinders in what's called a waste spark ignition system. Took it to three different mechanics so … Here is why!The leading cause of premature failure of an ignition coil is due to a worn or bad spark plug ignition cable.A bad spark plug ignition cable will have a much higher than normal resistance. Trying to relate this to long term and short term in OBD2 generic will cause you to age very quickly. © 2021 Endeavor Business Media, LLC. Push a needle or pin through the top left wire in the igniter connector. Figure 6 - The scope capture shows the ignition coil current is following the coil control from the PCM. The engine was started and allowed to run until it stalled. To avoid any future issues, fit the supplied replacement GOSS ignition coil that comes in the IM068 kit, regardless of the … something is causing the ignition coil to work too hard; 2.) Any time I am confronted with a problem like this, I will ask myself what has changed? Removing the clamp from the distributor, I found the distributor had been installed in the wrong position, possibly in an attempt to eliminate the P0341 code. If yes, go to STEP #4. I have found that the most common cause of ignition module failure, across all brands, is a faulty secondary ignition system. My question is, when the ignition module fails, does the vehicle not start or does it just run poorly? The coils are inexpensive, so I would not hesitate to replace one with marginally low resistance. The car may stall, which would strongly suggest that ignition control module may be the cause of the overheating … I bet that MSD just throws them away. Failure Date: 11/13/2013 My … 4.8 and 6 Volt NiCd/NiMh Packs. Specifications. II.) I.) VW does a great job of giving many PIDs of actual and specified. During the following crankshaft revolution, they reverse roles. RJLUK MEMBER; 2002 BUICK LESABRE; 6 CYL; FWD; AUTOMATIC; 110,000 MILES ; About 2 years ago, I had the engine replaced. the coil driver is leaving the coil on too long. Twin Specifications. A faulty ignition module can affect ignition timing, resulting in an engine that misfires and runs rough. I have had too many failures and have read about too many failures online for these to be random events. 3. This makes me kick myself in the back side, since I did not take a look at the fuel trim at all. Sep 1, 2019. In Figure 1, the waveform shows a problem with the ignition coil current. The Delphi Training Series breaks it down for you. *I repeat this is not related to the on going ignition switch recall on the 2005-2010 Chevrolet Cobalt models, this is another safety issue that needs to be addressed and investigated right away. During the belt installation process, I removed the crankshaft sprocket. Through a numerous array of electronic sensors, chips, and components within the vehicle, the ECU can transmit data feedback to the engine. That leaves only fuel mixture and secondary ignition. Buick Lesabre owners have reported 10 problems related to ignition module (under the electrical system category). I checked the coils, replaced the ignition coil $400, checked the wires for shorts, replaced the harness and it still started and stalled. A 2001 VW Cabrio ate ignition coils like my grandkids eat M&Ms. That would result in no spark at the plugs even though there is one at the coil. Ignition module failure is no joke because it often leaves you stranded. Dwell angle is the time period that the contacts are closed before opening to "generate" the spark. This high resistance causes a very high amount of voltage to be generated from your ignition … Be sure to fix the root cause of the oil leak, so this problem does not reoccur with the new ignition parts installed. To answer this question, I unplugged the ignition coil and put a power and ground to the coil. Specifications. 6.4 Volt Li-Fe(A123) Packs III.) The vehicle was towed twice to the dealer where the electronic ignition module was replaced each time. Failure to remedy these problems can also void your warranty. A bad module may pass a … With the new timing belt installed and the distributor properly installed, the P0341 DTC is gone. We reserve the right to edit a comment that is quoted or excerpted in an article. The engine could be restarted and it would run, and then stall again. When this data was taken, the engine was at idle, and is reporting 10% correction on the scan tool. Make sure the transformer has adequate VA. Considerations. Figure 3 - Photo of the TDC mark on the flywheel & the distributor not in the correct position. Worn switch contacts, temperature problems, or broken springs; can all cause the ignition switch to fail, preventing you from starting your car. Ignition Module problem of the 2005 Buick Lesabre 1. Also, had to replace 2 more of the ignition coils 2 weeks ago, along with new plugs to be safe. To compare that to OBD II generic trim, that would be close to a 20 percent correction. Failure Date: 11/01/2015 I had ignition switch … The ignition module is key in ensuring that your engine is going to run properly. I am so fed … In this case, the ignition coil is overheating, and then the coil driver goes and loses its mind and turns the coil on way too long, resulting ultimately in the engine stall. There are theories as to what the actual cause of the module frying is, but the root cause is the secondary ignition system. Since the timing belt cover is already loose, let’s have a look at the marks on the camshaft sprocket. All rights reserved. Let’s take a look at a wiring diagram to see how this circuit is designed. But like any machine, the ignition module too is susceptible to wear and tear and regular care and maintenance is needed to avoid problems. Checking circuits 406 I/C control for 2/3 coil and 423 I/C control for 1/4 coil for open ckt; shorts to ground; or poor connections. Seven problems related to ignition module have been reported for the 2006 Chevrolet Cobalt. If the plug gap is too wide, the new coil will … The vehicles that used this module had a conventional hall-effect distributor with a separate coil. I have a cam timing code so I want to address this first but I feel that I might be able to fix both the low MAF flow code and the CKP/CMP code at the same time. Data block 2, fields 3 and 4 are very close to each other. Code P0341 (Camshaft Position Sensor circuit range/performance) and P0102 (MAF flow too low). Is it the ignition coil itself, is it an input to the PCM or is it the PCM that is causing the destruction of the ignition coils?". The engine started and ran OK and was driven about two weeks before the engine stalled again. I have taken the hold down clamp off the distributor and the aligning pins are not in the correct position. According to the vehicle owner, the timing belt had never been changed and this part had never been taken off the engine. This causes an increase in electrical current, which stresses the driver/transistor, causing it to fail. To answer this question, I used two current probes and my lab scope. These signals will then be sent to the engine so the engine can know when to fire. Ignition Module problem of the 2006 Chevrolet Cobalt 9. At shop #2, they replaced the ignition coil, put in a used ECM, installed a new distributor and put on a new MAF. Once the ignition module or the driver is destroyed, replacing the module or PCM without fixing the underlying cause of the failure will just damage the replacement components. This excessive voltage creates a high amount of heat … Any time I hear something like this, my mind always wonders if the problem is really an ignition coil or is the defective ignition coil a product of something else that is causing the ignition coil to fail. My car wouldn't start and I already knew what it was. We recently replaced all 6 ignition coils and spark plugs. We moderate comments. Figure 7 - Scan data of the MAF data and fuel trim data. The vehicle was driven for two weeks and stalled again. Failure Date: … the ignition coil has worn out from a long life. delay, ignition starts again. Brad Bergholdt is an automotive technology instructor at Evergreen Valley College in San Jose, Calif. You are solely responsible for your comments and by using TribLive.com you agree to our While driving approximately 15 mph, the vehicle stalled without warning and failed to restart after several attempts. Usually the cause of failure is an ignition coil that is shorting-out or drawing too much current. This engine has timing marks on both the crankshaft harmonic balancer and the flywheel. I.) I think I can rule out the problem of the coil driver, since there are no problems with the coil on time until the coil overheats. My next question is, “What is causing this problem? The engine may also run well at low speed, but won’t accelerate well. These two Ignition Control (IC) signals contain the data the ignition module needs to be able to know the exact moment to start switching on and off the primary current of the ignition coils that are sitting on top of it. The ignition module requires at least 0.2 A at 24 Vac. Repeated failure of the ignition control module is typically due to one or more faulty ignition coils. A new OE coil from the dealer was installed. We do not edit comments. Each time one of the coils fires, two spark plugs receive a spark. Selecting a power source. With the Cabrio at my shop, I found the engine could be started and it would run about 15 minutes and then stall. … Usually the cause of failure is an ignition coil that is shorting-out or drawing too much current. Figure 8 - Scan data with the new MAF installed. III.) Ford relocated them to the inner fender in a finned aluminum heat-sink to keep them cooler and last longer. Terms of Service. 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If the replacement modules are failing in a manner that prevents the engine from starting, and the replacements are of good quality, I'd ask your service tech to take a very close look at the wiring connector that attaches to the module. In this case, the MAF is out on vacation, The MAF on the vehicle is a brand new part. Rcexl Ignitions Ver 2.0 INSTRUCTIONS Thank you for purchasing our Rcexl Ignition! There are a few codes stored in the ABS module and two codes stored in the PCM. I need to avoid this if possible. Since this engine has had some work done to it, I want to verify a few things. In this case, the actual and specified are not even close. This will cause premature or repeat failure … Normally, car ignitions won't generate much more than a 300V spike and to demonstrate this here's another picture taken from this site: - That site also explains something else which may have resulted in the failure of the IGBT. I.) During the shutoff sequence, gas is shut off 100 percent. All coils failed in the same manner. 2.) The flywheel inspection plug is already missing so it is easy to turn the engine and line up this mark. To avoid any future issues, fit the supplied replacement GOSS ignition coil that comes in the IM068 kit, regardless of the … Our goal is to provide substantive commentary for a general readership. I pull the module out and test it: Yep, cooked. Don't include URLs to Web sites. When it comes to an ignition coil failure there are only three things that come to my mind; 1.) i replaced the plugs, - Buick 2001 LeSabre question truck will run find, shut it down and it will not refire. Dwell angle is the time period that the contacts are closed before opening to "generate" the spark. This is a little higher than normal although this in itself shouldn’t cause coil failure. Selecting a power source. P1300 Ignition Coil No. One cylinder is on its compression stroke and the other is on its exhaust stroke. Water intrusion is an unlikely, and therefore, overlooked cause of ignition coil damage. I have added a ballist resistor, this … I have begun to accept that every 3 months or so it will die on the road, which has happened about four/five times now I think. Sudden stalling of your engine when you are speeding up or failure to start the engine after repeated attempts are some of the major indications of problems. Stalling: A failing ignition module can occasionally prevent the engine from getting spark, causing it to stall. Single Specifications. In Figure 7 data block 2, the last two fields, injection timing and mass air flow sensor data should both be very close to each other. … Ignition Timing: Provides a 90 second maximum ignition trial, shuts off, waits six minutes nominal, then reinitiates the pilot ignition sequence. In going over some of my scope captures of the secondary ignition, I noticed the engine would idle with a KV spike from 9KV-15KV, depending on engine RPM. For this, you need a 10-megaohm digital multimeter. (cranking buddy not shown—see “Victoria’s Secret” catalog models for suggestions for a helper.) Repeated ignition coil failure, 3 mechanics, no solution. My next question was what is causing the PCM to suddenly increase the on time of the coil, causing it to self-destruct? My first question was, “What is going away, spark or fuel? At times, the codes must be cleared before the engine will restart. The typical wiring configuration for a two coil-on-plug assembly includes battery power supply and the direct control circuit (trigger) of You’ll waste a lot of time if you crank the en-gine with the ignition off. Now, without having to get out of the driver’s seat, you can watch these three data blocks, run the engine at different speeds and get a very good idea how the MAF is reporting the air being inhaled by the engine. Ignition Module problem of the 2006 Chevrolet Cobalt 9. Many of these problem vehicles come from other shops and many of the vehicles have been … Sign up for Vehicle Service Pros eNewsletters. Mounting: Mounts … S8600, S8610, S8660, S8670 INTERMITTENT PILOT MODULE 69-0463—03 2 Water … A short in the igntion coil that lowers normal resistance in the primary windings will allow excessive current to flow through the coil, which may damage the ignition control module …