Charlie90GST
15+ Year Contributor
- 78
- 0
- Mar 6, 2006
-
San Antonio,
Texas
I have a 98 gst, about a week ago it threw the random misfire code, bucked, sputtered, backfired and quit. I had it towed home, changed the spark plugs (checked gaps) plug wires, coil pack, fuel filter. after theat it seemed ok till it got to operating temp the thre another code for misfire cylnder 3, i changed the injectors out the it stopped throwing cels but the bucking is still there. I took it to the stealership for a 1 hour diagnostic, they said all the sensors were fine. i noticed after he had it running for a bit that it was smoking from the exhaust, looked white as he took off on a test drive, they want to test fuel pressure but want to charge me for 2 more hours, I could replace the fuel pump and fpr for that price. anyway its threw random misfire again at the dealership. After I got it home i took off the egr and vacuum tested it, it seems to be working fine. the timing is correct btw so I;m at a loss. any ideas?
Is there anyone in san antonio that could maybe come look at her and help me figure this out?
Is there anyone in san antonio that could maybe come look at her and help me figure this out?