Engine Performance problem
2001 Chevy S-10 6 cyl Four Wheel Drive Automatic 155000 miles
OK my truck is showing po300 code. I cannot figure this thing out. New plugs, wires, cap rotor, ran comp check, seem up to par. New fuel pump and filter. The truck runs great at wot. But at steady speeds or even in park it just misses bad. Just tinkering around I unplugged the tps. And it quit missfire. Im not real familiar with all the electronics. So I went and bought a new tps and well no diff in the missfires so I guess that ruled that out. I need help please
have the same problem?
Sunday, May 9th, 2010 AT 8:24 AM