P307A fault code: what it means

P307A: VW group code: air intake flow too low. Rough idle and weak acceleration; usually the throttle body.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

carbon build-up in the throttle body
failed throttle body

P307A by make

Audi

VW group code: air intake flow too low. Rough idle and weak acceleration; usually the throttle body.

Usual causes: carbon build-up in the throttle body; failed throttle body

Skoda

VW group code: air intake flow too low. Rough idle and weak acceleration; usually the throttle body.

Usual causes: carbon build-up in the throttle body; failed throttle body

Volkswagen

VW group code: air intake flow too low. Rough idle and weak acceleration; usually the throttle body.

Usual causes: carbon build-up in the throttle body; failed throttle body

What the repair usually costs

Throttle body clean and idle relearnNZ$90–NZ$190 · A$100–A$200
Electronic throttle body replaceNZ$470–NZ$1,290 · A$440–A$1,190
Petrol fuel injectors (port injection, set)NZ$430–NZ$1,420 · A$400–A$1,360
Coil packs and spark plugs (4-cylinder)NZ$280–NZ$1,000 · A$260–A$920

Not sure what P307A 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.