- Joined
- Nov 25, 2012
- Points
- 178
- Location
- Newport, South Wales,UK
- Model of Z
- Z3 M43 1.8 (1999) and Z4 E85 2.5 (2003)
@Peter53 paid a visit today with his 2.0l Z3 reoccurring misfire code on No 6 already swopped coils around but no change. Also duff exhaust sensor bank 2 pre cat.
Took plug out and checked it was sparking, it was but looked a bit wet but not excessive.
Fuel trims do look ok on the scanner but the misfire code returns after clearing and running the car. I am leaning towards replacing the coil as the current one is original and has heat damage to the plastic body. Lambda sensors will be changed and of replacement coil doesn't get rid of the misfire attention will turn to the injector, will try a dose of cleaner before spending out on an injector. Having cleaned the plug it did bring down the smooth running on No 6 from 9 to 1.5 on the scale remainder look pretty good.
Suggestions always welcome if you think we are heading in the wrong direction.
Took plug out and checked it was sparking, it was but looked a bit wet but not excessive.
Fuel trims do look ok on the scanner but the misfire code returns after clearing and running the car. I am leaning towards replacing the coil as the current one is original and has heat damage to the plastic body. Lambda sensors will be changed and of replacement coil doesn't get rid of the misfire attention will turn to the injector, will try a dose of cleaner before spending out on an injector. Having cleaned the plug it did bring down the smooth running on No 6 from 9 to 1.5 on the scale remainder look pretty good.
Suggestions always welcome if you think we are heading in the wrong direction.