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P1260 fault code: what it means

P1260: PD unit injector cylinder 1 signal makes no sense. Power loss; a worn camshaft can be the root cause.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

  1. faulty unit injector (N240)
  2. injector loom or plug fault
  3. worn camshaft lobe

P1260 by make

Audi

PD unit injector cylinder 1 signal makes no sense. Power loss; a worn camshaft can be the root cause.

Usual causes: faulty unit injector (N240); injector loom or plug fault; worn camshaft lobe

Ford

Ford code: theft detected, engine immobilised. Car won't start or starts then dies.

Usual causes: key not recognised by PATS; faulty key transponder; PATS antenna; programming fault

Mazda

Immobiliser system problem: the PCM has not received key approval. Engine starts and stalls, or will not start.

Usual causes: key not programmed / wrong key; start stop unit or immobiliser fault; CAN communication fault

Skoda

PD unit injector cylinder 1 signal makes no sense. Power loss; a worn camshaft can be the root cause.

Usual causes: faulty unit injector (N240); injector loom or plug fault; worn camshaft lobe

Volkswagen

PD unit injector cylinder 1 signal makes no sense. Power loss; a worn camshaft can be the root cause.

Usual causes: faulty unit injector (N240); injector loom or plug fault; worn camshaft lobe

Not sure what P1260 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.