P1131 Volkswagen HO2S Circuit Low Variance Bank 1 Sensor 2
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1131 Volkswagen Description
A Heated Exhaust Oxygen (HO2S) sensor indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time.
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