o2 sensors
Moderator: martauto
-
HenryM3
- E30 Zone Regular
- Posts: 675
- Joined: Mon Feb 05, 2007 11:00 pm
- Location: Bournemouth
Have a look at these graphs and would they be responsible for a rough idle (surges slightly). Been smoke tested, no vacuum leaks, engine is s50 b32 fitted in m3. Readings taken at idle at full operating temperature