PDA

View Full Version : Help with CPS/Pulse Generator


method0075
11-20-2008, 07:06 AM
1992 535i m30

I was hoping to get some information about this part. I just removed mine from my car . It is covered in oil and road crap, black sticky crap. I also noticed that the line was pinched between the coolant hoses and probaly got very very hot. The part also came off with little effort I was able to unscrew it by hand and wiggle it.

HOw does this part affect my idle and performance. I have a very rough idle that I think is due to cracked ditributer cap but am curious about this part. I have order a replacement part and tried to look it up but couldn't find any info on it.

bimmer dot info
11-20-2008, 07:41 AM
It is used by the ECU to figure out the position of the crank (and thus the pistons). On the later cars it is the main signal for the spark and fuel injection (if I understand things correctly). On yours I would think it is just used to determine when to fire the injectors.