Ok I'm getting the P0172/0175 mixture to rich bank a/b. No other codes. Well history shows P1000 P0172, P0175, P1111

I've checked that there are no air leaks. My car has a new OEM MAF its about 1 year old, new fuel pumps 1 year ago and I've just put a new battery in the car (I got the codes before and after the new battery).

When I look at the long term fuel trims I'm getting -10.9% and -6.25% !! They used to be +4.7% and +7%

Also my MAF air flow rate has gone from 5.41g/s to 6.37g/s

See attached for good and bad readouts at idle after 10 mile drive.

Anyone any ideas

Thanks
Simon

 

Had the same codes last summer. I cleaned the MAF-IAT1 Sensor Connector with Electrical Contact Cleaner and cleared the codes and all is well.