P1066 fault code: what it means

P1066: MultiAir cylinder 1 oil supply solenoid switch-off time out of range (2.4 Tigershark). Can set with P219A; rough running or loss of power.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

MultiAir actuator (brick) solenoid
low or wrong engine oil
PCM software
wiring/connector

P1066 by make

Jeep

MultiAir cylinder 1 oil supply solenoid switch-off time out of range (2.4 Tigershark). Can set with P219A; rough running or loss of power.

Usual causes: MultiAir actuator (brick) solenoid; low or wrong engine oil; PCM software; wiring/connector

What the repair usually costs

Turbocharger replacement (diesel ute / SUV)NZ$1,920–NZ$5,130 · A$1,780–A$4,810

Not sure what P1066 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.