Audi
Rear oxygen sensor correction at its limit (bank 1). Usually an air leak or an ageing sensor.
P1176 fault code: what it means
P1176: Rear oxygen sensor correction at its limit (bank 1). Usually an air leak or an ageing sensor.
Usual causes, most likely first
- intake air leak
- ageing oxygen sensors
- exhaust leak
P1176 by make
Skoda
Rear oxygen sensor correction at its limit (bank 1). Usually an air leak or an ageing sensor.
Volkswagen
Rear oxygen sensor correction at its limit (bank 1). Usually an air leak or an ageing sensor.
What the repair usually costs
- Air-fuel ratio / front O2 sensor replace (upstream)NZ$270–NZ$750 · A$260–A$730
- O2 sensor replace (downstream / after cat)NZ$180–NZ$480 · A$180–A$460
Not sure what P1176 means on your car? Ask Credov.
Before you clear it
Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.
Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.