P1349high severityPowertrain
VVT System Malfunction Bank 1
on 1997 Toyota 4Runner 3.0L V6 · 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.
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Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1