P2623 Possible Causes
- Faulty injector control pressure regulator
- Injector control pressure regulator harness is open or shorted
- Poor electrical connection in injector control pressure regulator circuit
How to Fix Code P2623
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.
Possible Symptoms
Illuminated engine light (or service engine soon warning light)
P2623 Meaning
The Powertrain Control Module (PCM) monitors the Injector Control Pressure Regulator (ICPR) circuit. The PCM sets the OBDII code when the injector control pressure regulator circuit is outside factory specifications.