P1132 fault code: what it means

P1132: Front oxygen sensor not switching. The engine runs open-loop; higher fuel use.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

failed front oxygen sensor
exhaust leak
wiring fault

P1132 by make

Volvo

Front oxygen sensor not switching. The engine runs open-loop; higher fuel use.

Usual causes: failed front oxygen sensor; exhaust leak; wiring fault

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

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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.