P1670
Electronic Feedback Signal Not Detected
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)
Symptoms
- Unstable engine operation
- Check Engine Light Illuminates
- Reduced engine power
- Increased fuel consumption
- Problems starting the engine
Causes
- Open or short circuit in feedback circuit
- Faulty electronic component (eg VVT valve)
- Poor contact in the connector
- Problems with the control unit (ECU)
- Mechanical jamming of the actuator
How to Fix
- Check the integrity of the feedback circuit
- Inspect connectors and contacts for corrosion or damage
- Check the functionality of the electronic component
- Scan the control unit for additional errors
- If necessary, replace the faulty component