P1349
VVT System Malfunction Bank 1
2001-2005 Lexus GS 430 4.3L V8
High SeverityPowertrain
Description
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.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1349 on Other Vehicles
Common Questions
What does code P1349 mean on a 2001-2005 Lexus GS 430?
P1349 stands for "VVT System Malfunction Bank 1". The VVT system on Bank 1 is not changing timing as commanded by the ECM.
What are the symptoms of P1349 on a Lexus GS 430?
Common symptoms of P1349 include: CEL, Rough idle, Poor performance, Poor fuel economy, Extended cranking.
What causes P1349 on a 2001-2005 Lexus GS 430?
Common causes of P1349 include: Low/dirty oil, Faulty OCV, Stuck VVT controller, Blocked oil passages.