I have a 88 Chevy Silverado pickup 2 wheel drive with a 350 ci engine TBI
and automatic overdrive transmission. I have been having problems with it's
inability to keep idling.
I have recently changed the spark plugs (gap checked), new spark plug wires,
distributor cap and rotor, and new ignition coil. I also have had it into a
couple of garages to t'shoot the problem. From the latest t'shooting, the
technician indicated after replacing numerous sensors and electronic
components that the problems must be related to the main computer or a
wiring problem. The technician also indicated that there does not seem to be
a pulse signal to the injectors during idling and it only is receiving the
5V operating voltage.
If I keep the engine revved up, it will not stall.
I have since tried replacing the main computer, but this does not remedy the
I have also changed out the transmission as there was a torque converter
lock up/stall speed concern.
I have not yet changed the wiring harness.
Much appreciated if anyone can provide some insight.