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P1313 fault code: what it means

P1313: Misfire rate high enough to damage the catalytic converter (bank 1). Do not keep driving hard.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

  1. failed coil or plug
  2. injector fault
  3. vacuum leak

P1313 by make

Land Rover

Misfire rate high enough to damage the catalytic converter (bank 1). Do not keep driving hard.

Usual causes: failed coil or plug; injector fault; vacuum leak

Porsche

Cylinder 1 misfire, emission relevant. Rough running; a flashing check light means stop to save the cats.

Usual causes: fouled or wrong spark plug; cracked ignition coil; loose coil connector

What the repair usually costs

Not sure what P1313 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.