...fuel trim bank 1 and 2 respectfully. Thoughts on what is causing these?? have u checked/ replaced your o2 sensors since you have owned the vehicle? HAVE A 1996 YUKON THE SERVICE ENGINE LIGHT WANT GO ...
...Fuel Trim. Accelerate. Turn off the air conditioner and all the other loads and apply half throttle until 55mph (88km/hr) is reached. During this time the Misfire, Fuel Trim, and Purge Flow ...
...trim fuel reader it should be around 0 to -2 for a proper mixture. anything -10 to +10 is acceptable tho but will cause either a power loss or fuel mileage loss. For fuel long trim anything in the ...
...fuel trim bank 1 and 2 lean so I checked fuel pressure was at 55 replaced fuel pump again this time with a GM pump and replaced spider with update version also fuel filter and mass air meter (new GM) ...
Question about 2003 Yukon
...fuel trim,or module voltage,or O2 sensor data?Right now it sounds as though you have no knowledge aboutvehicles & haven't actually done anythingWhat does work & how do you know thatYou ...
...leaking or an O2 Sensors has a slow switching count causing a richfuel mixture.Any vacuum leaks will cause a lean condition & the computerwill drive the fuel pulse or trim, rich to ...
...there's a couple of things it could be going on broken wire wet cap and rotor loose coil wire bad fuel pump clogged fuel filter really need more info like what are your fuel.trims any codes what ...
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