P1135 AUDI – HO2S Heater Circuit- Bank 1 & 2 Sensor 2 Electrical Malfunction

P1135 AUDI Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1135 AUDI Possible Causes

Faulty O2 Sensor,O2 Sensor harness is open or shorted,O2 Sensor circuit poor electrical connection

P1135 AUDI Description

A Heated Exhaust Oxygen (HO2S) sensor indicating rich at the end of a test is trying to correct for an over-lean condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time.