P1701moderate severityPowertrain
Fuel Trim A/T Related
on 2002 Infiniti QX4 3.3L V6 · RWD
What this code means
Fuel trim signal issue between engine and transmission control systems.
Symptoms
- CEL
- Poor shift quality
- Engine flare during shifts
- Rough transitions
Common causes
- Communication fault
- Fuel trim out of range
- Faulty sensor data
- Faulty ECM or TCM
Diagnostic steps
- Monitor fuel trims
- Test communication
- Check sensors
- Compare ECM/TCM data
Repair notes
Repair communication or sensor issue.
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