E61 Touring Discussion The touring is also known as the wagon version of the 5 series.

Misfire at idle only while warm

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Old 04-04-2024, 08:38 AM
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Default Misfire at idle only while warm

So I’ve had this issue recently where running the car for over an hour, if I stop and sit for a couple seconds the car will misfire once every ~30 seconds it feels like, and only while warm. It doesn’t pull up any codes and It also starts up rough and shakes the hell out of the car if I start it once it’s been warm for a while. Neither issue happens when it’s cold, and it does it whether the ac is on or off. any ideas?
Old 04-04-2024, 02:21 PM
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Check for vacuum leaks. What device are you using to read the codes?
Old 04-09-2024, 10:39 AM
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Originally Posted by donpb
Check for vacuum leaks. What device are you using to read the codes?
autel scanner, no vacuum leaks found
Old 04-09-2024, 03:40 PM
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if you have no codes, that's most likely because it's not occurring enough to throw a code or it resolves itself. Intermittents are the worst to troubleshoot.
Old 04-21-2024, 11:33 AM
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Originally Posted by donpb
if you have no codes, that's most likely because it's not occurring enough to throw a code or it resolves itself. Intermittents are the worst to troubleshoot.
it’s terrible to troubleshoot for sure haha. Been going at it for 2 weeks with no leads. Taking a shot in the dark and doing my PCV system as my car never went in for recall and potentially is showing symptoms now.
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