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BMW 3-Series (E90 E92) Forum
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Misfire in cylinder 2, 4, and 6.
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03-29-2018, 11:59 PM | #1 |
Private First Class
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Rep 119
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Misfire in cylinder 2, 4, and 6.
Please read all I am stumped
I recently changed valvecover my self. When I did it ran fine for a few hours then all of a sudden a crazy amount of white smoke, it could be blue I havent gotten the best look at it. It started misfiring aswell. I wwnt to autozone to have my codes ran and it said vacuum leak bank 1 and 2 (ive had and cant seem to get rid of) and misfire cylinder 2 and 4. I figured I should swap the ignition coils in bank 2 and 4 to bank 1 and 3 and see if it were my ignition coils or spark plugs. I drove it around and it ran fine with no misfire and then as soon as I did a slight pull in 3rd at 2.5k rpms eased into the gas around 50% maybe a little more it misfired to Where i couldn't accelerate and smoke dumped out the back. I went back to autozone and now it says misfire cylinder 2, 4, and 6. 2 and 4 spark plugs were the only ones with fresh oil on top of them but it was the smaller amount you can think of. Cylinder 6 had pieces of like a fuzzy flower leaf thing in it. I checked the tips of the plugs and they were fine. I put everything back together and it runs fine for now but i didnt do any sort of pull with it I'm scared all that smoke might be oil or coolant but im not low on coolant and I cant trust my oil gauge. What is causing this misfire??? Could it be my valve cover/spark plug well gaskets not being on correctly? Is it a fuel injector? Could all 3 spark plugs just go out? Please help any effort is greatly appreciated. I will literally send you a tip if you tell me the answer. Thank you. Good day. |
04-15-2018, 05:44 PM | #2 | |
Lieutenant
165
Rep 513
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Drives: 08 335i
Join Date: Apr 2017
Location: Atlanta
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Quote:
I just did my VCG and got vanos errors . I also got a lot of smoke. Let me know what you find the smoke on mine concerns me
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2008 335i E93, DP's, 7" FMIC, DCI,CP TIAL Q BOV, MHD Stage 2+, Alpina Flash
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