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
Jul 10, 2013 at 9:25 AM
