Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
491
Specific fault index within the subsystem.
Frequently asked questions about P2491
What does P2491 mean?
EGR Cooler Bypass Control Circuit High Bank 2. The control module detected that the signal in the EGR Cooler Bypass Control circuit stayed above the expected operating range.
Is P2491 generic or manufacturer-specific?
P2491 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2491 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