i have a 98 chevy truck and need help with diagnostics. i want to do live data scanning to see whats really going on with the engine because i have had to replace all o2 sensors and still get a reading telling me o2 bank2 sensor1/2 lean mixture,random misfire.when i pulled out the plugs i'v got carbon buildup sugesting to me a rich mixture,leadding me to believe that the vcm is giving a faulse reading and pushing the mixture up and leading to long term internal damage. any profesional help would be greatly appriciated!!!!!
2007-01-01 12:23:15 · 1 answers · asked by james m 1 in Cars & Transportation ➔ Maintenance & Repairs
probally has a vacume leak or bad injector somewhere and the computer is richining it up check with someone who is fimiler with scantools and have them help you as this isnt a learn quick item
2007-01-06 02:59:55 · answer #1 · answered by smile it makes people wonder?? 3 · 0⤊ 0⤋