SuperFudge
10+ Year Contributor
- 92
- 0
- Feb 26, 2011
-
Parma,
Ohio
Hey guys I recently noticed that my temperature gauge on my car started fluctuating from the half way point up to 3/4 then quickly back down to half. From what I understand the car isn't overheating, so I ended up doing the Key Dance to pull codes.
I ended up with code 22 and according to AllData that's a code for an Engine Coolant Temperature sensor, either voltage to high or low.
The question is what would cause the sensor to have a high voltage or low? Or should I just replace the sensor and call it the day?
I know that the ECT sensor is a thermistor and changes resistance with temperature. Once the resistance changes it sends a signal to the PCM which then sends signals off to other key valuable sensors in the car.
I ended up with code 22 and according to AllData that's a code for an Engine Coolant Temperature sensor, either voltage to high or low.
The question is what would cause the sensor to have a high voltage or low? Or should I just replace the sensor and call it the day?
I know that the ECT sensor is a thermistor and changes resistance with temperature. Once the resistance changes it sends a signal to the PCM which then sends signals off to other key valuable sensors in the car.
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