P1349high severityPowertrain
VVT System Malfunction Bank 1
on 1998 Lexus GS 300 3.0L I6 · RWD
What this code means
The VVT system on Bank 1 is not changing timing as commanded by the ECM.
Symptoms
- CEL
- Rough idle
- Poor performance
- Poor fuel economy
- Extended cranking
Common causes
- Low/dirty oil
- Faulty OCV
- Stuck VVT controller
- Blocked oil passages
Diagnostic steps
- Check oil level/condition
- Test OCV operation
- Monitor cam timing
- Check oil pressure
Repair notes
Change oil. Replace OCV or VVT controller.
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