Questions & Answers for: change o2 sensor 1999 grand

...change it yourself you will save a lot of money. same thing happened with my 99.Took it to Auto Zone the codes came back faulty gas cap, O2 sensor and another thing.Replaced all that stuff kept doing ...

...O2 switching issues, this may be related to the injector circuit problem since it is a fuel control issue. This one is going to ake a trip to the dealer to sort out. the 0200-0299 codes are injector ...

holes. Might a, O2 sensor plug gotten knocked loose during the oil change? The engine computer uses the O2 sensors to help set fuel ratio. If they aren't working right the exhaust could smell stronger

...awhile.time varies. Till it will restart. I have changed out the 3 coil pack and got new plugs.. Are any fault codes there? Sometimes O2 sensor can send this bad info to the ECU. Scanning OBD

...fan relay............still says running lean and having same problems....help please Try changing the O2 sensor before the catalytic converter... mainly if you have seen a change in the gas

...Sensor and car ran great for month and a half. Just did it again but this time while on the highway. After a 2+ hour wait, car started again (while taking it off of Flatbed) like nothing happened! ...

change mpg calculation two tenths. BUT, that does not account for the huge disparity in your numbers. You may have something wrong with the trip calculator or, there may be a leak somewhere. Have your

it dies! I've changed the fuel pump 2 times and an 0 2 sensor also. Please help! Have you scanned the system for fualt codes? An O2 sensor will never cause the engine to stall out like this, NEVER

...o2 sensor I put in new spark plugs and changed the oil what could it be Oil Pressure & an O2 Sensor? You make stuff up as you go,silly You don't even know what the oil pressure is That is the ...

...O2 sensor faults, sensor 1 bank 1. PO135 is telling you the heater in the sensor is not working. PO132 is telling you that the sensor is in the high range, most likely because the sensor is not ...