Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
0A8
Specific fault index within the subsystem.
Frequently asked questions about P20A8
What does P20A8 mean?
Reductant injection air pressure control valve - circuit low. The control module detected that the signal in the Reductant injection air pressure control valve circuit stayed below the expected operating range.
Is P20A8 generic or manufacturer-specific?
P20A8 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P20A8 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
ItalianoIT
DeutschDE
EspañolES
PortuguêsPT
FrançaisFR
РусскийRU