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P0458 fault code: what it means

P0458: EVAP purge valve (N80) circuit shorted to ground.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

  1. faulty purge valve (N80)
  2. wiring short
  3. power supply relay fault

P0458 by make

Audi

EVAP purge valve (N80) circuit shorted to ground.

Usual causes: faulty purge valve (N80); wiring short; power supply relay fault

Skoda

EVAP purge valve (N80) circuit shorted to ground.

Usual causes: faulty purge valve (N80); wiring short; power supply relay fault

Subaru

EVAP purge control valve circuit low. Improper idling possible.

Usual causes: purge control solenoid valve; wiring short

Volkswagen

EVAP purge valve (N80) circuit shorted to ground.

Usual causes: faulty purge valve (N80); wiring short; power supply relay fault

Volvo

EVAP purge solenoid circuit low.

Usual causes: faulty purge valve; wiring short

Not sure what P0458 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.