Engine Performance problem
1994 GMC Sonoma 4 cyl Two Wheel Drive Manual 233500 miles
My 1994 Somoma just started running rough. I performed a tune up with plugs and wires in May. The check engine light came on with a code 32.
What I replaced:
Clean throttle body, did not remove fuel rail.
(EGR vent was completely clogged with carbon)
Eventhough I did this work, the truck is still running rough under load. At this point, there is no check engine light.
I'm out of options. Can you help?
How about the IAC or fuel presure sensor or Differential presure sensor?
have the same problem?
Monday, August 25th, 2008 AT 4:07 PM