P20A7 Possible Causes
- Faulty reductant injection air pressure control valve
- Reductant injection air pressure control valve harness is open or shorted
- Poor electrical connection in reductant injection air pressure control valve circuit
What Does It Mean?
How to Fix Code P20A7
Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
P20A7 Possible Symptoms
Check engine light illuminated (or service engine soon warning light)
P20A7 Meaning
Reductant injection air pressure control valve performance is the generic description for code P20A7, but the manufacturer may have a different description.