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P14A2 fault code: what it means

P14A2: Exhaust back pressure sensor signal makes no sense.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

  1. faulty exhaust pressure sensor
  2. split sensor hose

P14A2 by make

BMW

Exhaust back pressure sensor signal makes no sense.

Usual causes: faulty exhaust pressure sensor; split sensor hose

Mini

Exhaust back pressure sensor signal makes no sense.

Usual causes: faulty exhaust pressure sensor; split sensor hose

What the repair usually costs

Not sure what P14A2 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.