Mechanics

OBD CODE PO157

1999 GMC Truck

Engine Performance problem
1999 GMC Truck V8 Four Wheel Drive Automatic 145000 miles

truck runs good changed o2sensor light keeps coming on no exhaust leaks or vaccum leaks how do I get light to stay off?
Avatar
Jeff farnham
October 16, 2009.




I just checked my code book, and it seems there is more than one sensor. The code says " circuit low volts" (bank2 sensor 2) You should have it scanned again, and find out what type of sensor it is, and its location.

Tiny
Mickey-d
Dec 31, 2009.


AD