6.0L Power Stroke Diagnostics (2003.5–2007)

Ford Super Duty 2003.5-2007, Excursion 2003-2005 and E-Series vans 2004-2010 — the HEUI 6.0L, where a high-pressure oil pump and IPR valve fire the injectors, a 48-volt FICM drives them, a variable-geometry turbo, EGR with a cooler, and no DPF or DEF. FICM, ICP/IPR, EBP/VGT, EGR and glow-plug codes dominate.

Common symptoms

• Coolant Loss or Pressurized Coolant Bottle — 6.0 Power Stroke Diagnostic guide for 6.0 Power Stroke coolant loss or pressurized degas bottle.
• Engine Stalls or Dies While Driving — 6.0 Power Stroke Diagnostic guide for 6.0 Power Stroke (2003.5–2007) engine stalls or dies while driving.
• Hard Start, Long Crank or No Start — 6.0 Power Stroke Diagnostic reference for 6.0L Power Stroke hard start, long crank or no start conditions. Covers HEUI high-pressure oil, FICM voltage, crank/cam signals, and…
• Loss of Power or Surging — 6.0 Power Stroke Diagnostic reference for loss of power or surging on 2003.5–2007 6.0L Power Stroke (HEUI, VGT turbo, EBP-controlled VGT).
• Oil Temperature Much Higher Than Coolant Temperature — 6.0 Power Stroke On a warmed-up 6.0L Power Stroke at highway speed, engine oil temperature running more than about 15 °F above coolant temperature is the classic sign of a…
• Rough Idle and White Smoke on Cold Start — 6.0 Power Stroke A 6.0L Power Stroke that idles rough and smokes white on a cold start, then smooths as it warms, is a common cold-start complaint on 2003.5–2007 Super…

• P0069 — Manifold Absolute Pressure - Barometric Pressure Correlation — 6.0 Power Stroke Diagnostic reference for P0069 on 6.0L Power Stroke (2003.5-2007).
• P0236 — Turbocharger/Supercharger Boost Sensor A Circuit Range/Performance — 6.0 Power Stroke Diagnostic reference for 6.0 Power Stroke (2003.5–2007) P0236.
• P0261 — Cylinder 1 Injector Circuit Low — 6.0 Power Stroke Diagnostic reference for P0261 on 6.0L Power Stroke (2003.5–2007).
• P0299 — Turbocharger/Supercharger Underboost Condition — 6.0 Power Stroke Diagnostic reference for 6.0L Power Stroke (2003.5–2007) P0299.
• P0335 — Crankshaft Position Sensor A Circuit — 6.0 Power Stroke P0335 on 6.0L Power Stroke (2003.5–2007) indicates a fault in the crankshaft position (CKP) sensor circuit. The PCM uses CKP for engine speed/position; loss of…
• P0340 — Camshaft Position Sensor A Circuit — 6.0 Power Stroke P0340 on the 6.0L Power Stroke means the PCM has detected a fault in the camshaft position (CMP) sensor circuit. On this platform a lost CMP signal can cause…
• P0380 — Glow Plug/Heater Circuit A — 6.0 Power Stroke Diagnostic reference for P0380 on 6.0 Power Stroke (2003.5–2007).
• P0401 — Exhaust Gas Recirculation Flow Insufficient — 6.0 Power Stroke P0401 on the 6.0L Power Stroke means the PCM sees less EGR flow than commanded. On this platform low flow is usually a soot-stuck EGR valve or a restricted EGR…
• P0402 — Exhaust Gas Recirculation Flow Excessive — 6.0 Power Stroke Diagnostic reference for 6.0 Power Stroke (2003.5–2007) EGR flow excessive.
• P0404 — Exhaust Gas Recirculation Control Circuit Range/Performance — 6.0 Power Stroke Diagnostic reference for 6.0 Power Stroke (2003.5–2007) EGR control circuit range/performance.
• P0470 — Exhaust Pressure Sensor A Circuit — 6.0 Power Stroke Exhaust Pressure Sensor A Circuit fault on the 6.0L Power Stroke; PCM detects an electrical fault in the EBP sensor circuit used for VGT control.
• P0471 — Exhaust Pressure Sensor A Circuit Range/Performance — 6.0 Power Stroke P0471 on the 6.0L Power Stroke means the PCM sees the Exhaust Back Pressure (EBP) sensor signal outside the expected range/performance. The EBP sensor feeds…
• P0611 — Fuel Injector Control Module Performance — 6.0 Power Stroke Diagnostic reference for 6.0L Power Stroke (2003.5–2007) with code P0611.
• P0670 — Glow Plug Control Module Control Circuit — 6.0 Power Stroke The PCM has detected a fault in the circuit it uses to command the glow plug control module on a 6.0L Power Stroke. The GPCM is frame-mounted and drives the…
• P0671 — Cylinder 1 Glow Plug Circuit — 6.0 Power Stroke P0671 diagnostic reference for 6.0L Power Stroke (2003.5–2007).
• P0683 — Glow Plug Control Module to PCM Communication Circuit — 6.0 Power Stroke Diagnostic reference for 6.0 Power Stroke (2003.5–2007) P0683.
• P1316 — Injector Circuit / IDM Codes Detected — 6.0 Power Stroke The PCM reports that the FICM has stored its own injector-circuit faults. On the 6.0L Power Stroke the FICM drives the HEUI injectors at ~48 V and flags those…
• P1335 — EGR Position Sensor Minimum/Maximum Stop Performance — 6.0 Power Stroke Diagnostic reference for 6.0 Power Stroke (2003.5–2007) EGR position sensor stop performance fault.
• P2269 — Water in Fuel Condition — 6.0 Power Stroke Diagnostic reference for the 6.0L Power Stroke (2003.5–2007) water-in-fuel code.
• P2284 — Injector Control Pressure Sensor Circuit Range/Performance — 6.0 Power Stroke Diagnostic reference for 6.0L Power Stroke HEUI injection control pressure sensor circuit range/performance fault.
• P2285 — Injector Control Pressure Sensor Circuit Low — 6.0 Power Stroke Diagnostic reference for P2285 on 6.0L Power Stroke (2003.5–2007) HEUI injection.
• P2286 — Injector Control Pressure Sensor Circuit High — 6.0 Power Stroke P2286 on 6.0 Power Stroke indicates the ICP sensor signal voltage is above the valid range. The code is a circuit/electrical fault, not a true high-pressure…
• P2290 — Injector Control Pressure Too Low — 6.0 Power Stroke Diagnostic reference for 6.0 Power Stroke (2003.5–2007) HEUI high-pressure oil system.
• P2291 — Injector Control Pressure Too Low - Engine Cranking — 6.0 Power Stroke Diagnostic reference for 6.0 Power Stroke (2003.5–2007) P2291.
• P2623 — Injector Control Pressure Regulator Circuit/Open — 6.0 Power Stroke P2623 on a 6.0L Power Stroke means the PCM has detected an open or fault in the IPR control circuit. The IPR valve sits on the high-pressure oil pump in the…