P01DD
Cylinder 10 Injection Timing Performance Over Retarded
Generic OBD-II
Common symptoms
What you'll notice
- Check the fuel injector for clogging or malfunctioning.
- Inspect the fuel delivery system for any leaks or blockages.
- Test the ignition timing to ensure it is properly adjusted.
- Verify the condition of the cylinder 10 spark plug and replace if necessary.
- Check the engine control module (ECM) for any software updates or reprogramming requirements.
Common causes
Most likely first
- Faulty fuel injector for cylinder 10
- Clogged or dirty fuel injector for cylinder 10
- Ignition timing issues for cylinder 10
- Low fuel pressure for cylinder 10
- Engine control module (ECM) malfunction for cylinder 10
How to diagnose & fix
Work through it in order
- Poor engine performance or reduced power
- Rough idle or engine misfires
- Increased fuel consumption
- Engine vibration or shaking
- Difficulty starting the engine
Read & clear P01DD yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.