What does engine fault code 2085 mean?

1 Answers
Nina
07/29/25 10:05pm
Engine fault code 2085 refers to an intermittent issue in the exhaust temperature sensor circuit. Possible causes of exhaust temperature sensor failure: The most likely scenario is internal aging of the sensor, causing curve drift. When occasionally functioning normally, the control unit receives completely normal signals, but when occasionally malfunctioning, the data received by the control unit deviates from normal values. This causes the control unit to record the fault, resulting in high-speed fan operation. Function of exhaust temperature sensor: It transmits exhaust temperature to the electronic control unit in the form of electrical signals. The correct air-fuel ratio produces lower exhaust temperatures than those produced by either too rich or too lean air-fuel ratios.
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