DRGIGGLES222 Posted May 23, 2020 Share Posted May 23, 2020 Recently I had my evap purge valve replaced along with the spark plugs. After leaving the shop i accelerated quickly to match the flow of traffic and my car started sputtering and check engine light flashing..it had a cylinder 4 misfire coad they said it was the coil pack and replaced it... only to have the same thing happen... i was going roughly 45mph and my rpms jumped to 4000 when it started sputtering.. hopefully someone can help me 0 Quote Link to comment Share on other sites More sharing options...
bbf2530 Posted May 23, 2020 Share Posted May 23, 2020 26 minutes ago, DRGIGGLES222 said: Recently I had my evap purge valve replaced along with the spark plugs. After leaving the shop i accelerated quickly to match the flow of traffic and my car started sputtering and check engine light flashing..it had a cylinder 4 misfire coad they said it was the coil pack and replaced it... only to have the same thing happen... i was going roughly 45mph and my rpms jumped to 4000 when it started sputtering.. hopefully someone can help me HI DRGIGGLES. What does the shop way after the latest issue? They have their hands on the car, so should be able to diagnose better than Internet strangers. That being said: If a coil goes bad (seemingly after they were manipulating them to replace the plugs), it can fry the PCM, which will require replacing the PCM. And the opposite can also occur. If the PCM went bad first, it could have fried the coil. Perhaps another member will jump in with some other experience/advice, but in the meantime, I would sat the shop needs to do some diagnosis. Also, it is probably not coincidental that this all happened after the shop replaced the plugs. Keep us updated and good luck. 0 Quote Link to comment Share on other sites More sharing options...
DRGIGGLES222 Posted May 23, 2020 Author Share Posted May 23, 2020 They don't really know ... i want to take it somewhere else but i feel like ive already spent the money and they should fix it 0 Quote Link to comment Share on other sites More sharing options...
jwalter Posted July 14, 2020 Share Posted July 14, 2020 DrGiggles did you ever get this resolved? I've recently had a cylinder 4 misfire issue. So far I've swapped the spark plugs and the CPS. I went out today to grab an injection system for cylinder 4 to find out that my oil is burning up or leaking somewhere ( piston or turbo problem). Any further information you can provide will be helpful. Bbf2530 Is there a sure fire way to determine whether the PCM is contributing to the issue? 0 Quote Link to comment Share on other sites More sharing options...
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