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P2080 fault code: what it means

P2080: Exhaust gas temperature sensor 1 range/performance.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

  1. failing EGT sensor
  2. exhaust leak near the sensor
  3. wiring fault

P2080 by make

Isuzu

Exhaust gas temperature sensor 1 range/performance.

Usual causes: drifting sensor; exhaust leak

Mercedes-Benz

Exhaust gas temperature sensor (bank 1 sensor 1) out of range. DPF regeneration may be affected.

Usual causes: failed exhaust temp sensor; wiring fault

Not sure what P2080 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.