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Discussion Starter #1
Hello

I have e60 m5 and i have problem in my car when i start car cold rough idle and misfire 3 cylinder 1,6,7

I replace 4 o2 and air mass &spark plug &clean injector

Same problem


See this video

https://youtu.be/HJ4C-_d5Jp8
 

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33 Posts
Always worth swapping the ionic modules over and seeing if the misfires move cylinders, if they do at least one or both is faulty. it's a quick and easy test and used units can be picked up quite cheaply.
 
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CucoM5
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