6.7L Cummins Diagnostics (2007.5–2012, EGR + DPF)

Dodge/Ram 2500/3500, 2007.5-2012 — the first 6.7L Cummins: CP3 common rail, electric VGT, EGR, DOC, NOx adsorber and DPF. No SCR/DEF. Boost-actuator, EGR, DPF and fuel codes.

• P0045 — Turbocharger Boost Control Solenoid A Circuit/Open (6.7 Cummins (EGR + DPF, pre-SCR)) P0045 is a generic OBD-II code for an electrical fault in the turbocharger boost control solenoid A circuit. On the 2007.5–2012 6.7L Cummins (EGR+DPF, pre-SCR)…
• P0087 — Fuel Rail/System Pressure Too Low (6.7 Cummins (EGR + DPF, pre-SCR)) Measured fuel rail pressure is below the PCM's commanded value on a 6.7L Cummins 2007.5–2012 (EGR+DPF, pre-SCR).
• P0088 — Fuel Rail/System Pressure Too High (6.7 Cummins (EGR + DPF, pre-SCR)) Measured fuel rail pressure exceeds the commanded value on 6.7 Cummins 2007.5–2012 (EGR+DPF, pre-SCR).
• P008A — Low Pressure Fuel System Pressure Too Low (6.7 Cummins (EGR + DPF, pre-SCR)) Diagnostic reference for 6.7 Cummins 2007.5–2012 EGR+DPF pre-SCR with code P008A.
• P0090 — Fuel Pressure Regulator Control Circuit (6.7 Cummins (EGR + DPF, pre-SCR)) P0090 means the ECM has detected an electrical fault in the circuit that controls the fuel pressure regulator on a 6.7L Cummins 2007.5–2012 EGR+DPF pre-SCR.
• P0128 — Coolant Thermostat Below Regulating Temperature (6.7 Cummins (EGR + DPF, pre-SCR)) Engine coolant does not reach the expected operating temperature in the expected time. On 6.7L Cummins 2007.5–2012 EGR+DPF pre-SCR the thermostat is a…
• P0193 — Fuel Rail Pressure Sensor A Circuit High (6.7 Cummins (EGR + DPF, pre-SCR)) P0193 means the ECM sees the fuel rail pressure sensor voltage out of range high on a 6.7L Cummins 2007.5–2012 with CP3 common rail, in-tank lift pump, VGT…
• P0201 — Injector Circuit/Open - Cylinder 1 (6.7 Cummins (EGR + DPF, pre-SCR)) The ECM has detected an electrical fault in the fuel injector circuit for cylinder 1 on a 6.7L Cummins 2007.5–2012 (EGR+DPF, pre-SCR).
• P0202 — Injector Circuit Malfunction Cylinder 2 (6.7 Cummins (EGR + DPF, pre-SCR)) The engine control module has detected an electrical fault in the fuel injector circuit for cylinder number two.
• P0234 — Turbocharger/Supercharger Overboost Condition (6.7 Cummins (EGR + DPF, pre-SCR)) P0234 on 6.7 Cummins 2007.5–2012 EGR+DPF pre-SCR means the ECM has detected boost pressure above the allowed maximum for current conditions. On this platform…
• P0263 — Cylinder 1 Contribution/Balance Fault (6.7 Cummins (EGR + DPF, pre-SCR)) Diagnostic reference for 6.7L Cummins 2007.5–2012 (EGR+DPF, pre-SCR) with CP3 common rail, in-tank lift pump, VGT HE351VE with electric actuator, NAC+DPF, no…
• P0299 — Turbocharger/Supercharger Underboost Condition (6.7 Cummins (EGR + DPF, pre-SCR)) P0299 on 6.7 Cummins 2007.5–2012 means boost pressure is below the minimum expected for current conditions. On this platform the turbo is a Holset HE351VE VGT…
• P0401 — Exhaust Gas Recirculation Flow Insufficient (6.7 Cummins (EGR + DPF, pre-SCR)) Exhaust Gas Recirculation Flow Insufficient
• P0402 — Exhaust Gas Recirculation Flow Excessive (6.7 Cummins (EGR + DPF, pre-SCR)) Diagnostic reference for 6.7L Cummins 2007.5–2012 EGR+DPF pre-SCR.
• P0404 — Exhaust Gas Recirculation Control Circuit Range/Performance (6.7 Cummins (EGR + DPF, pre-SCR)) Exhaust Gas Recirculation Control Circuit Range/Performance
• P0420 — Catalyst System Efficiency Below Threshold (6.7 Cummins (EGR + DPF, pre-SCR)) Diagnostic reference for 6.7 Cummins 2007.5–2012 EGR+DPF pre-SCR. P0420 is atypical/rare on this platform; catalyst efficiency monitoring is tied to DPF/regen…
• P042E — Exhaust Gas Recirculation Control Stuck Open (6.7 Cummins (EGR + DPF, pre-SCR)) Diagnostic reference for 6.7L Cummins 2007.5–2012 (EGR + DPF, pre-SCR).
• P0471 — Exhaust Pressure Sensor A Circuit Range/Performance (6.7 Cummins (EGR + DPF, pre-SCR)) Exhaust Pressure Sensor A Circuit Range/Performance
• P2002 — Diesel Particulate Filter Efficiency Below Threshold (Bank 1) (6.7 Cummins (EGR + DPF, pre-SCR)) Diagnostic reference for 6.7 Cummins 2007.5–2012 EGR+DPF pre-SCR. P2002 indicates the ECM judges DPF filtering efficiency below threshold using…
• P2262 — Turbocharger Boost Pressure Not Detected (6.7 Cummins (EGR + DPF, pre-SCR)) Diagnostic reference for 6.7L Cummins 2007.5–2012 EGR+DPF pre-SCR with HE351VE VGT and electric actuator/position sensor. No wastegate/vacuum/boost solenoid on…
• P226C — Turbocharger/Supercharger Boost Control A Position Exceeded Learning Limit (6.7 Cummins (EGR + DPF, pre-SCR)) P226C on 6.7L Cummins 2007.5–2012 (EGR+DPF, pre-SCR) means the ECM has detected the VGT actuator’s learned travel is outside the allowable range. The platform…
• P2452 — Diesel Particulate Filter Pressure Sensor A Circuit (6.7 Cummins (EGR + DPF, pre-SCR)) P2452 is a DPF differential-pressure sensor circuit fault on the 6.7L Cummins 2007.5–2012 (EGR+DPF, pre-SCR).
• P2459 — Diesel Particulate Filter Regeneration Frequency (6.7 Cummins (EGR + DPF, pre-SCR)) P2459 indicates the ECM has detected that DPF regenerations are occurring more often than expected on a 6.7L Cummins 2007.5–2012 EGR+DPF pre-SCR platform.
• P2609 — Intake Air Heater 'A' Circuit High (6.7 Cummins (EGR + DPF, pre-SCR)) P2609 on 6.7 Cummins 2007.5–2012 means the PCM has detected voltage in the intake air heater 'A' circuit higher than expected. This platform uses a grid heater…