[quote:ed4fa9ddff="Jerry 66"]Engine Performance problem
1992 GMC Sonoma 4 cyl Two Wheel Drive Manual 135000 miles
could this be the catalytic converter and if so could it be run with out the catalytic converter[/quote:ed4fa9ddff]
Hello,
Yes it could be the cat. But it could also be a few other things.
Is your check engine light on? If so will need to pull codes.
Have you check the plugs wires cap and rotor. Check fuel Pressure, fuel filter , Mass Air Flow Sensor, Timing.
.
Mar 22, 2009 at 8:24 PM