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bekerteli bekerteli is offline
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Join Date: Jan 2022
Car: honda
Default BMW N54 engine - symptoms of failing injectors - 01-01-2022, 07:23 AM

I'm fearing my injectors may be wearing out, as the car has about 126k miles on it. The car runs a little rough (but not too bad yet) on a cold start, and occasionally misses at idle even after warmed up. Rarely it will enter limpmode when driving hard, but hasn't been setting any codes. I've changed the turbos and plugs recently so I can rule out those issues.

2008 BMW 535i E60 btw

Not gonna lie, I'm kind of hoping the head gasket will blow so I have a reason to pull the headappvalley tutuapp tweakbox
and refurbish the whole thing. Clean the intake port carbon buildup and stuff haha.

Last edited by bekerteli; 01-06-2022 at 09:16 AM..
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Dave @ BMS's Avatar
Dave @ BMS Dave @ BMS is offline
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Car: E92 335XI
Default 01-06-2022, 12:30 PM

Let the car sit overnight & pull the plugs.

If they are wet with fuel, the injector on that cylinder(s) is leaking and will need to be replaced.

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