Dorman Diesel Injection Control Pressure Harness

Dorman Diesel Injection Control Pressure Harness: Precision Fit for Demanding Diesel Systems

The Injection Control Pressure (ICP) sensor is one of the most critical feedback components in a diesel fuel system. Diesel Injection Control Pressure Harnesses serve as the vital electrical link between this sensor and the engine control module, and when that link corrodes or fails, the consequences are immediate and serious. Dorman addresses this common failure point with an engineered OE-replacement harness designed specifically for Ford Power Stroke diesel applications.

Why the ICP Harness Matters

In a diesel engine, the ICP sensor continuously monitors fuel system pressure and relays that data to the ECM. The ECM relies on this signal to manage injection timing and fuel quantity — meaning that if the harness is compromised by oil saturation, heat, or corrosion, the ECM loses its ability to control injector function correctly. The result can range from rough idling and hard starts to complete no-start conditions and stored diagnostic trouble codes like P0191, P0192, or P0193.

The harness itself sits in a harsh underhood environment, making it especially vulnerable to the oil intrusion that commonly plagues Ford 7.3L and 6.0L Power Stroke engines. Over time, oil soaks into the connector and sensor body, degrading the electrical signal and accelerating sensor failure.

What Makes Dorman's Harness Stand Out

Dorman's approach to this category is focused on durability and complete repairability. Dorman part number 904-222 is engineered as a direct-fit replacement for the OE harness on Ford Super Duty, F-250, F-350, and related applications spanning model years 1994–2007.

• Oil-intrusion resistance: The harness is constructed from durable plastic specifically to prevent oil from soaking into the sensor, a key failure mode on these engines.
• Sensor protection: By shielding the ICP sensor from oil intrusion, the harness helps extend the life of the sensor itself — not just restore the connection.
• Complete repair kit: The kit includes butt connectors and wire loom, giving technicians and DIYers everything needed for a thorough repair in a single package.
• OE-matched fit and function: The harness is designed to match the original equipment connector pinout and dimensions, making installation straightforward on specified applications.
• U.S.-designed quality: Backed by over a century of aftermarket engineering experience, Dorman products are designed in the United States with a focus on long service life.

Ideal Replacement Scenario

This harness is the go-to solution when the original harness is missing, oil-fouled, burned, or corroded — all common findings during routine ICP sensor diagnostics on Ford Power Stroke trucks. Because the ICP sensor and its pigtail are both known failure points on these platforms, replacing the harness at the same time as the sensor is widely considered best practice by diesel technicians. Dorman also offers a companion Diesel Injection Control Pressure Sensor (part 904-500 / 904-502), sold separately, making it straightforward to perform a comprehensive repair.

For diesel owners and shops looking for a reliable, properly engineered solution to a well-documented Ford Power Stroke weakness, the Dorman Diesel Injection Control Pressure Harness delivers factory-correct fit with materials built to outlast the original.