P20AA Possible Causes
- Faulty air injection pressure control valve
- Open or shorted air injection pressure control valve circuit
- Poor electrical connection in the air injection pressure control valve circuit
What Does It Mean?
How to Fix Code P20AA
Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
P20AA Possible Symptoms
Check engine light on (or service engine soon warning light)
P20AA Meaning
Air injection pressure control valve stuck open is the generic description for code P20AA, but the manufacturer may have a different description