an535i
11-22-2004, 08:00 PM
been chasing down a lumpy idle situation and since its been about 20k miles since i looked at the plugs I decided to pull them out. Well they are (all) definately white so I suspect the car is running quite lean. Also about 20k miles since i put the engine chip in. Plugs were o.e. Bosch , fuel filter has been change in last 12k miles.. My question to other people with chipped 535i's is this normal ?
Or should i be looking at replacing the FPR??
Where can I get injectors flow tested / cleaned ??
Can auto parts stores do this?
Or should i be looking at replacing the FPR??
Where can I get injectors flow tested / cleaned ??
Can auto parts stores do this?