P1246 fault code: what it means

P1246: Needle lift sensor (G80) signal makes no sense on the VP37 pump TDI. Juddering, misfire or cutting out.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

1. air in the fuel or blocked filter
2. fuel supply interrupted
3. faulty needle lift sensor
4. injection pump fault

P1246 by make

What the repair usually costs

• Engine air filter replacementNZ$40–NZ$130 · A$30–A$120

Not sure what P1246 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.