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P1162 fault code: what it means

P1162: Honda A/F sensor (sensor 1) slow response. Usually an ageing sensor.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

  1. A/F sensor ageing
  2. exhaust leak
  3. wiring fault

P1162 by make

Honda

Honda A/F sensor (sensor 1) slow response. Usually an ageing sensor.

Usual causes: A/F sensor ageing; exhaust leak; wiring fault

Land Rover

Left bank mixture adaptation per ignition too large (running lean).

Usual causes: vacuum leak; weak fuel pump; faulty MAF

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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.