folks,
suggestion requested, kindly help!
BMW E90 2008 , misfire on cylinder 2 during cold start. After misfire is fixed, approx after running 100kms, misfire will happen when starting the car on cold engine.
spark plugs replaced 2 times. First NGK and currently BMW spark plugs. Fuel pump replaced. Coils swapped between 1 & 2. Injector swapped between 1 & 2. Still misfire on cylinder 2.
Available options:
1. Test all 4 injectors and sometimes testing will do cleaning/fixing also as per mechanic since testing is done by passing high pressure fuel. cost of this will be $250
2. Replace all 4 injectors, this will cost $1250
What do you suggest? And what are other things i should ask mechanic to check and tell which will help me diagnose the problem?
Bookmarks