2008 535i Misfiring on both Cold and Warm
11-18-2016, 04:38 PM
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Location: Sacramento, CA
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My Ride: 2008 BMW 535i
2008 535i Misfiring on both Cold and Warm
Hey guys! So this car has been irritating me to no end, it's an 08 535i with 74k miles, and it has been misfiring since I got it. At first I would get lean codes, then rich codes, but now all I get is misfire on Cylinder 4. I threw in new spark plugs, tested all my coils, and replaced the injectors. I also have a new O2 Fuel sensor, and already checked for any leaks. I'm pretty much running out of ideas here, could carbon build up be causing this? Cylinder 4 pretty much misfires constantly.
I would appreciate any insight!
I would appreciate any insight!
11-18-2016, 04:47 PM
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Join Date: Aug 2014
Location: San diego
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My Ride: 535i navi, pdc
Model Year: 2008
Engine: N54,m50
You should post check out n54tech.com to find your answer or at least post this question there as the people on that site are a lot more active than on this site and are extremely knowledgeable.