P1140moderate severityPowertrain
Intake Valve Timing Control Position Sensor Bank 1
on 2002 Infiniti QX4 3.3L V6 · RWD
What this code means
Fault in VTC position sensor monitoring actual camshaft position.
Symptoms
- CEL
- Rough idle
- Poor performance at certain RPM ranges
Common causes
- Faulty CMP sensor
- Damaged wiring
- Oil contamination
- Timing chain stretch
Diagnostic steps
- Test sensor output
- Inspect wiring
- Check oil condition
- Monitor cam position
Repair notes
Replace CMP sensor.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1