Need coil resistance readings - Page 5 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 04-22-2006, 02:04 PM   #41
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Thing is with my Accels, during a WOT run, approaching redline, somethis very bad would happen ignition-wise. Appearantly super-early ignition, accompanied by a loud pop, RPMs would drop from 5k to 300 instantaneously, and would not give my any power for several seconds. I think the PCM was protecting the engine after the pre-ignition. It happened a handful of times, I'd swap back to stock, couldn't repeat, put them back on, did it again, never used them again. Maybe I just got a bad coil...
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Old 04-23-2006, 02:53 AM   #42
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Quote:
Originally Posted by J Wikoff
Thing is with my Accels, during a WOT run, approaching redline, somethis very bad would happen ignition-wise. Appearantly super-early ignition, accompanied by a loud pop, RPMs would drop from 5k to 300 instantaneously, and would not give my any power for several seconds. I think the PCM was protecting the engine after the pre-ignition. It happened a handful of times, I'd swap back to stock, couldn't repeat, put them back on, did it again, never used them again. Maybe I just got a bad coil...
Yes it could be a bad coil or even coils for that matter, Stock coil seem to have the best reliability in my book, Although I have never experience anything like that at WOT with my ACCELs. My advise would be to use the later model stock GM coils that put out more power if your not going aftermarket. I have just been very lucky with my ACCELs and have great results and reliability with them but if the do go bad, I'm going back to GM coils of the later models.
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Old 04-23-2006, 11:43 AM   #43
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We've only had 3 sets of Accel'* on here before you that I recall, and all 3 failed early or were bad out of the box.

MSD coils work very well. I have a set over 2 years old, and some have even older coils. They are a little hotter than S2 L67 OEM coils.
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Old 05-22-2006, 04:24 PM   #44
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Is that really true, your MSD'* took a dump, I was going to try MSD'* just for the hell of it and see if there is a difference between my Accels that do put out 45,000 volts opposed to 40,000 with the MSD'* and the stock ones, Although I still think the GM stock coils are the most reliable. So My question would be is it worth the money or just stick with my Accels?

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Originally Posted by llBlazin_llLo
That is the problem with MSD'*... That is why I always have said MSD coils looky good; OEM coils work. It is not worth the $$ and the minor performance you will get out of them if you have to replace the coils ever two years. If MSD would replace them after two year then it might be a diferent story but good luck trying to get them to do that. Willwren by chance do you know how many miles you have on them? I want to compare it to a few of my friends MSD coils that took a dump.
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Old 05-22-2006, 04:46 PM   #45
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Wrens MSD'* didn't dump. it was a bad reading or battery in the multimeter.
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