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P0130 fault code: what it means

P0130: Bank 1 upstream oxygen / air-fuel sensor circuit fault.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

  1. failed front O2 / A/F sensor
  2. damaged wiring or connector
  3. sensor heater fault
  4. exhaust leak before the sensor

P0130 by make

Nissan

Front air-fuel ratio sensor (bank 1) circuit fault on Nissan.

Usual causes: failed front A/F sensor; sensor wiring open or shorted; poor connector contact

What the repair usually costs

Not sure what P0130 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.