Variable Cam Timing Over-Retarded Bank 1
Findings, check these first
- Failed VCT solenoid unable to advance the cam
- Low oil pressure to the phaser
- Stuck phaser in the retarded position
- Sludged phaser oil passages
- Worn timing components
Standard procedure
- Check oil level, viscosity and pressure
- Command the phaser and watch for movement
- Test the solenoid operation
- Flush sludge if oil history is poor
- Replace the phaser or solenoid per findings
Code lookup
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Sources and review
Review: checked against the recorded source material.
- OBDII.pro: P1383 Ford definition
live reference page (obdii.pro)
Supports: Ford-family meaning for P1383: Variable Cam Timing Overretarded (Bank #1)
Fetched directly. obdii.pro is a publisher independent of the engine-codes family.
- P1383 FORD Code: Meaning, Causes, and Symptoms | OBD2 Codes
live reference page (obd2-codes.co)
Supports: Ford meaning for P1383: Variable Cam Timing Over Retarded Bank 1
Fetched directly. obd2-codes.co phrasing matches the engine-codes family, so it counts as one publisher.
Last updated 2026-09-06.
Report a correction for P1383. Include your vehicle, the issue and a source if you have one.