Questions & Answers for: know o2 sensor bad 97

...problem or something else? try checking the coolant resivoir level sensor has not come loose or got a bad conections in the plug. make sure your cooling fan is working, check the relay to the ...

...SUNFIRE IS BURNING A LOT OF GAS Is the check engine light on? If you have a sensor that is bad, it will cause bad fuel mileage. Especially if it is an oxygen sensor. It might just need a

...O2 sensor. Idles really rough when first started up in the morning. Exhaust smells really gassy. After engine warms up runs great for the rest of the day. Is there 1 or 2 O2 sensors on this car? ...

...O2 sensor. This reports poor emission performance back to the car's PCM (computer) P0325 indicates a bad "Knock" sensor which would adversely effect drivability as far as performance is concerned. ...

...O2 sensor, I think I would change it. The multiple misfires could be because of improper fuel/air mixture caused by a bad sensor. Disconnect the negative(-) battery terminal then change the sensor. ...

...O2 sensor causing the vehicle to run too rich. The best thing is to run a scan to see if there are any codes and they can see if the O2 sensors are work and even check the Mass Air Flow sensor too. ...

...O2 sensor is getting a high reading in its heater circuit. This can mean the wiring to the O2 sensor on Bank2 has rubbed through or the O2 sensor is bad. To explain, the O2 Sensors have a heating ...

o2 sensor. The 1137 OBD2 code is typically an o2 sensor problem as you have indicated, first I would make sure your replacing the correct o2 sensor as there are two (upstream and downstream), although

...O2 sensor bank one sensor one.  The code meanss the sensor is not switching back and forth between rich and lean as fast as it should be.Could be an exhaust leak, or other engine problem.  ...

code po172 p0172 code-Would a bad O2 Sensor not allow my engine to start? No But not changing front or upstream O2 Sensors on all vehicles at 100,000 won't help with fuel control