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P1031 fault code: what it means

P1031: Intake manifold flap valve not reaching its set position. Mild power loss.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

  1. sticking intake manifold flaps
  2. faulty flap valve (N316)
  3. faulty flap position sensor (G336)

P1031 by make

Audi

Intake manifold flap valve not reaching its set position. Mild power loss.

Usual causes: sticking intake manifold flaps; faulty flap valve (N316); faulty flap position sensor (G336)

Skoda

Intake manifold flap valve not reaching its set position. Mild power loss.

Usual causes: sticking intake manifold flaps; faulty flap valve (N316); faulty flap position sensor (G336)

Volkswagen

Intake manifold flap valve not reaching its set position. Mild power loss.

Usual causes: sticking intake manifold flaps; faulty flap valve (N316); faulty flap position sensor (G336)

Not sure what P1031 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.