No rev past 3500

[teetime4one]

Here's a list of parts I threw at my car before finding the problem to be the o2 sensor.
1. fuel pump
2. ICV
3. TPS
4. MAFS

[Philly318]

I've done mafs. It's def good now. Did o2 no code anymore so yay. But I'm gonna do a crank sensor. My coolant leak was running directly on it. I that doesn't fix it fuel pump is next. So I hopes.

[Romak]

Originally Posted by Philly318

I've done mafs. It's def good now. Did o2 no code anymore so yay. But I'm gonna do a crank sensor. My coolant leak was running directly on it. I that doesn't fix it fuel pump is next. So I hopes.

Crank sensor is external, It's supposed to be able to handle the elements. Take it off and clean the sensor tip first and run it for a few more days it could just be packed up with dirt, oil, sand, etc. Better than dropping the money on a new one.

[Philly318]

That's a valid point. I will give it a shot can't hurt. Thanks

[Philly318]

Does anyone know the part number for a pcv valve or ccv or oil separator

[Biolite]

http://realoem.com/bmw/showparts.do?...62&hg=11&fg=15

There you go. Check your year on there though, I just did for an M44.

[pdxmotorhead]

Have you pulled the Throttle Body to air flow meter hose off and carefully inspected it for cracks? It does not last long, (< 4 years) and when it cracks it messes the mixture up throws o2 codes and put th3 engine in limp mode. (< 3500 RPM)

My 1995 just did this for the second time in 6 years.. Just replaced the throttle body tube and the IAC hoses. Should be good for 4 more years..

Dave

[Philly318]

I just replaced those parts a month ago. Can you tell me more about this limp mode.
I was thinking maybe the ccvv was stuck open I'm going to replace it this weekend. Is there any other things that can put the computer into limp mode

[Philly318]

Thanks for the part number site it was perfect

[brandonm]

ever fix this issue? im having the same problem

[Philly318]

The timing chain guides were absolutely wasted I replaced the motor with a used one and all is well.