P1320high severityPowertrain
Ignition Signal Primary
on 2002 Infiniti QX4 3.3L V6 · RWD
What this code means
ECM not receiving proper signal from ignition power transistor.
Symptoms
- CEL
- Misfires
- Rough idle
- Stalling
- Hesitation
- Hard start
Common causes
- Faulty ignition coil(s)
- Poor ground
- Damaged coil wiring
- Faulty power transistor
Diagnostic steps
- Test each coil
- Check grounds
- Inspect wiring
- Test power transistor
Repair notes
Replace faulty ignition coil(s).
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