I have a 1995 Chevy s-10 (170,000 miles) that won't idle when cold and runs rich.
Here's what I have done so far:
Changed the distributer, wires, plugs, rotor, cap, cooling temp. Sensor, idle air control, computer (but not the PROM chip), and coil. The fuel filter has been changed, there is no water in the gas and I have checked the ignition timing.
The spark coming from the coil to the cap is blue, but the spark coming from the end of the wire to the plug is orange. Also, I cannot pull an error code from the computer, I am getting a link read error instead.
When it does run, if it ever backfires when shutting off, it won't idle when started again. If it does start, I can bring the RPMs up, make it backfire, and it runs fine.
Saturday, September 29th, 2018 AT 6:15 PM