93 gmc sanoma 2.8 throttle body injection. Just took it through emmisions 3rd time and failed again. Catalytic converter passes, test shows 4x allowable fuel gasses. Have changed injectors, egr valve. O2 sensor changed 2 years ago. No problems at all before I changed injectors now have reset computer every couple days to get rid of hesitation and sputter. Gas consumption hasn't dropped a bit. Im out of ideas
have the same problem?
Wednesday, July 10th, 2013 AT 9:25 AM