Engine Performance problem
1997 GMC C1500 V8 Two Wheel Drive Automatic 162000 miles
I keep setting both bank 1 and bank 2 rich at the same time
I can erase the mil and drive non stop and the codes will never show up except in pending codes but as soon as I turn the engine off the codes will show up
i have replaced the o2 sensors, the maf is with in limits, fpr is replaced, fuel pressure is good,
when these codes are set my gas milage goes down to about 10mpg when the codes are set I get about 19 on the highway.
Thursday, October 23rd, 2008 AT 11:36 AM