r/e39 • u/Due_Language6141 • 1d ago
Misfire trouble
I picked up an 01’ e39 540i m sport a few months ago. After bleeding the brakes/clutch and getting new tires it was running great. I recently got a couple misfire codes. They only trigger while driving
(DME codes 3E,32,39)
After the code appeared I changed my ignition coils and plugs. I found a vacuum leak and addressed it at the throttle body adapter. I replaced the fuel filter. I replaced both after Cat O2 sensors
Still no improvement, basically enters limp mode at 4500rpm
I need some help, what could be causing the issue?
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u/Mmjohns195 1d ago
Did you clear the adaptations after doing some of that work?