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for obd1 or obd2? usaully it just means that the o2 sensor is bad and not getting accurate readings therefore making your car run either lean or rich
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Check engine light is on could it be o2 sensor?
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
What is diagnostic code 21 for a Jeep Cherokee 1993?
O2 sensor or wiring
How do i repair trouble code 21 for a 1995 Ram 2500?
It is probably a faulty O2 sensor. But check O2 sensor wiring and connections for damage first.
Chrysler Code 21?
That is a code for an Oxygen Sensor (O2 sensor). Depending on your model and year it can point to a specific one if it has more than one on the vehicle.
What is code p0161?
O2 sensor
Do you need upstream or downstream oxygen sensor?
Depends on what the problem is or what code was set.
What does 12 21 55 mean?
Code 12 means the battery has been disconnected recently. Code 21 is an Oxygen Sensor code. Code 55 is fault code display completion code. Even though you have a code for the O2 sensor I would still get a proper diagnosis before you replace the sensor. Wiring and other factors can cause the code to set also.
Hyundai o2 sensor code?
P0133
What does a problem code 21 mean on a 91 dodge colt?
It means the oxygen sensor is not giving an input to the PCM. Either a bad O2 sensor or a wiring issue.
What is fault code Po156 on Ford Taurus?
That code indicates a fault in the 'downstream heated O2 sensor' , bank 2.That code indicates a fault in the 'downstream heated O2 sensor' , bank 2.
What is OBDII code P0136?
O2 sensor circuit malfunction, Bank 1 sensor 2. Check the O2 sensor after the catalytic converter.
How do you correct code P0153 for a 1997 Mercury Mountaineer?
Trouble code P0153 means: HO2S-21 (Bank 2 Sensor 1) Circuit Slow Response Try replacing the upstream O2 sensor
