Volvo (and Mack)
Volvo fault code
Volvo Fault Code P20A672: Reductant Injection Air Pressure Control Valve Control
P20A672 on Volvo (and Mack) engines means: Reductant Injection Air Pressure Control Valve Control.
Code details
- Manufacturer
- Volvo (and Mack)
- Applies to
- Volvo D13 (2017–2020)
- Fault code
- P20A672
- Truck models in source
- Volvo VNL, VNR, VHD, VAH
What to do next
- Read active and inactive codes with the OEM service tool and note the occurrence count.
- Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.
Get this code diagnosed
Send one request and nearby diesel shops and mobile mechanics can quote the repair.
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Source: Volvo D13 2017–2020 fault code list (Diesel Laptops). See also OBD-II codes.