I have a 1992 S-10 Blazer CPI that idles very fast and surges during acceleration. The check engine light will comes on at times. But after turning off ignition it resets and may not come on the next time. I have been able to get codes in the past jumping A-B terminals under dash. Now the light flashes once then stays on. I had it checked with a scanner and all it showed was it was running rich. I tuned it up recently after an ignition miss that I chased down to worn ignition wire. Replaced cap, rotor, plugs and wires. After this recent problem I replaced EGR valve, TPI sensor, IAC valve, and oxygen sensor. I removed the Intake manifold tuning valve and didn't see any excess fuel in bottom of plenum. So I ruled out a leaking injector line. I also sprayed WD40 around plenum and gasket didn't seem to be leaking. I'm now leaning towards a bad computer. I'm running out of money and patience. Any help would be GREATLY appreciated. Thanks, Randy
have the same problem?
Tuesday, July 11th, 2006 AT 11:22 AM