P0192 fault code: what it means

P0192: Fuel rail pressure sensor circuit low.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

faulty rail pressure sensor
wiring short
5 V reference fault

P0192 by make

Isuzu

Fuel rail pressure sensor circuit low.

Usual causes: faulty rail pressure sensor; wiring short; 5 V reference fault

Mitsubishi

Rail pressure sensor signal low.

Usual causes: faulty rail pressure sensor; wiring short or connector fault

What the repair usually costs

CVT valve body replacement (remanufactured, in car)NZ$1,280–NZ$2,420 · A$1,200–A$2,400
High-pressure fuel pump (GDI petrol or common-rail diesel)NZ$1,140–NZ$4,280 · A$1,060–A$3,800

Not sure what P0192 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.