P2623Injector control pressure regulator - open circuit
Generic (OBD-II) interpretation in the TuningBot DTC database.
P · PowertrainFuelOBD2
What P2623 means
P2623
Injector control pressure regulator - open circuit
Generic · fuel
Data confidence78%
The control module detected an interruption (open circuit) in the Injector control pressure regulator circuit, so the expected electrical continuity was not present.
Symptoms
Possible hard starting or long cranking
Possible reduced power or cutting out
MIL illuminated
Possible causes
Wiring
injector control pressure regulator
Recommended checks
Read specified vs actual rail pressure at cranking, idle and load
Check low-pressure supply (pressure/volume) first
Check control valve/regulator operation
Measure injector return flow where applicable
Inspect wiring and connectors of pressure components
Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
623
Specific fault index within the subsystem.
Frequently asked questions about P2623
What does P2623 mean?
Injector control pressure regulator - open circuit. The control module detected an interruption (open circuit) in the Injector control pressure regulator circuit, so the expected electrical continuity was not present.
Is P2623 generic or manufacturer-specific?
P2623 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2623 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
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