Ok here is my issue I have a 1993 k1500 with a 5.7 tbi when at idle it has a low to the idle. It flacuates between 350 and 1000 rpm. I has so far replaced distributor, cap, rotor, plugs, wires, cts, iac, o2 sensor, map sensor and tps. I have checked and cleaned all of the grounds, reset the timing, check fuel pressure, checked vacuum and checked for vacuum leaks. I have no clue where to go from here any help would be greatly appreciated.
have the same problem?
Thursday, February 5th, 2015 AT 8:08 AM