Quote:
Originally Posted by zonefive
The engine mounts were replaced with BMW mounts 30,000 miles ago, and then at 15,000 miles ago, just to make sure it wasn't the mounts. The transmission mount was also changed with OEM with no difference.
This is a major problem with the M54 engine on the E46 forums, and no one has been able to figure it out there either.
I did find a couple places that sell ECUs that have them reprogrammed to raise the rpm to 900, vs 650, and I think I'll try that.
Has anyone ever used a tuned ECU? I searched for ECU in this forum and it said the search term was too short.
https://revmatchmotorsport.com/tunes/p/e46-tune
https://www.redline-motorsport.com/product/ms43-tuning/ |
My scan tool will allow me to raise the rpm's to 800, I think. I have it a t about 790 now. It helps, but it doesn't go away. It is far more noticeable when idling in gear. Makes me wonder if it might actually be a torque converter issue?