Questions & Answers for: Chevrolet resetting fuel trim

Code P0172 - 03 2.2 Cavalier I have had this code for the last few months now; cannot seem to fix it! I have replaced: MAP Sensor Coolant Sensor 02 Sensor IAC Valve What is next on the list i might ...

...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 ...

ok i had a p0302 and then i changed plug wires coil packs the icm injectors camshaft sensor and now i can a p0301 code.. and when i clear the code it will come back with the same code or else a p0300.

...failed this can affect the way it runs because of it wanting to change fuel trim.Would definitely replace this sensor and reset codes.This sensor will be the first O2 sensor on the driverside

i have a 98 chevy blazer and the checkengen light is on and the coades are po115, po174, po300, and po1153. I have changed two o2 sensers and the catalacconverter and the plugs and wires. I reset the ...

i put the spider in and now it knocks like a lefter. what do i check for? And it didn`t knock before we put in the spider. if you are saying it knocks when driving its probaly the distbutor is off by ...

...fuel trim, and canister purge. 3. Hold steady at 55 mph for three minutes. OBD-II monitors the EGR system, the air pump, the O2 sensors and the canister purge. 4. After the three minutes decelerate ...

...resetting the computer or does it need replaced. If the computer is bad than it will need to be replaced. I would make sure the bank 1 sensor 1 O2 sensor is not stuck lean. I have run into this many ...

...Fuel Trim System Lean Bank 1 DTC P0174 Fuel Trim System Lean Bank 2 Sorry but this is something you should take to a qualified repair shop that has a diagnostic tool that can view sensor scan data. ...

...on datastream with scanner, depending on o2 sensor data and short term fuel trim, could be either an o2 sensor bad or the catalytic converter bad, you might also check the fuel filter, if your ...