[hasta la pasta 27]

Hey everyone,

Car is currently at the dealer because I was doing maybe 70 holding constant and I started feeling a slight jerk back and forth. I switched to live MPG on dash and it was jumping from 32 to 26 and back and forth. I would accelerate and it would be fine until I would hold it at a constant speed. The dealer cannot seem to duplicate. Has Anyone ever experienced this?

[GMWNashville]

Originally Posted by ericruiz911

Hey everyone,

Car is currently at the dealer because I was doing maybe 70 holding constant and I started feeling a slight jerk back and forth. I switched to live MPG on dash and it was jumping from 32 to 26 and back and forth. I would accelerate and it would be fine until I would hold it at a constant speed. The dealer cannot seem to duplicate. Has Anyone ever experienced this?

Only thing I've had give that sensation in an n54 engine is carbon buildup

[hasta la pasta 27]

Well dealer figured it out. 3 injectors were clogged so it looks like the ECU was trying to compensate AFR to fuel PSI and it was fluctuating causing this. Hopefully get her back monday

[markusvt]

Any codes?

Originally Posted by ericruiz911

Well dealer figured it out. 3 injectors were clogged so it looks like the ECU was trying to compensate AFR to fuel PSI and it was fluctuating causing this. Hopefully get her back monday

[hasta la pasta 27]

Originally Posted by markusvt

Any codes?

I post a copy of the service receipt once I get the car back. Thursday makes it 2 weeks at the dealer