DTC P0134 Audi
HO2S (Bank 1 Sensor 1) Circuit No Activity
HO2S (Bank 1 Sensor 1) Circuit No Activity
Description
Engine running, battery voltage 11.5, all electrical components off, ground between engine and chassis well connected and the exhaust system must be properly sealed between catalytic converter and the cylinder head. The ECM detected the HO2S signal failed to meet the maximum or minimum voltage levels (i. e. , it failed the voltage range check).
Cause and Solution
Leaks present in the exhaust manifold or exhaust pipes
HO2S signal wire and ground wire crossed in connector (voltage jumps)
HO2S element is fuel contaminated or has failed
Video Guide
Diagnostic Info
- DTC Code: P0134
- Brand: Audi