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      12-04-2021, 07:41 PM   #1
daap1193
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Help with a rough idle

Need some help from the forum members, my M2C with 40,000 kms developed a rough idle some time ago and I'm trying everything to solve it with no luck.

After I stop it takes like 30 seconds to start shaking, it's very slightly to catch on camera but really annoying, I can describe it as a hip cup that feels on the driver seat and repeats every 3-4 sec.

If somebody has experience the same and know what causes will appreciate the help.

What I have tried so far
Check for leaks on the intake system
Clean the maf and tmap
Check all the charge pipes and J pipe for leaks
Replace all the spark plugs and gapped to 0.022
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      12-04-2021, 09:55 PM   #2
chewbakam4
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Maybe an injector? You can check their adaptation values through ISTA but I don’t recall the details on how this is done.
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      12-06-2021, 08:27 AM   #3
N44RP
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I have a similar issue, where after sitting for a bit the car definitely stops being smooth and almost seems like a minor misfire
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      12-07-2021, 05:15 PM   #4
N44RP
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One suggestion was to replace all coil packs
I’ll give this a try in the future
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