P053D
PCV Heater A Performance
Generic OBD-II
Common symptoms
What you'll notice
- Check and clean or replace the PCV valve
- Inspect and clean the PCV tube for any obstructions
- Check for any vacuum leaks in the PCV system and repair if necessary
- Inspect and replace any damaged or worn out hoses in the PCV system
- If all else fails, consider replacing the PCV heater assembly
Common causes
Most likely first
- Malfunctioning PCV valve
- Clogged or blocked PCV system
- Faulty PCV heater element
- Vacuum leaks in the PCV system
- Incorrectly installed or damaged PCV components
How to diagnose & fix
Work through it in order
- Decreased engine performance
- Rough idling or stalling
- Increased fuel consumption
- Check engine light illuminated
- Engine misfires or hesitates
Read & clear P053D yourself
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