7.3 Powerstroke Sensor Location Diagram: ICP, CPS, IPR, EOT, EBP and MAP (1994.5-2003)
Quick answer: On the 7.3L Power Stroke (1994.5–2003), the ICP sensor is at the front of the driver-side cylinder head, the CMP (cam) sensor is on the front cover just above the crankshaft damper, the IPR valve is on the back of the high-pressure oil pump deep in the valley, the EOT sensor and EBP sensor sit on the HPOP oil reservoir at the top front of the engine, and the MAP sensor is on the passenger-side firewall with a hose to the intake.
7.3 Powerstroke Sensor Location Chart
| Sensor | Location | What it does |
|---|---|---|
| ICP (injection control pressure) | Front of the driver-side cylinder head, threaded into the high-pressure oil gallery | Reports HEUI oil pressure so the PCM can set injection pressure and timing |
| CMP / CPS (camshaft position) | Front of the engine on the front cover, above the crankshaft damper (about 11 o’clock) | Hall-effect sensor that reads 24 windows on the cam timing disk for RPM and cylinder 1/4 position |
| IPR (injection pressure regulator) | Back of the HPOP, deep in the valley under the fuel filter bowl | Actuator that controls high-pressure oil (ICP) pressure |
| EOT (engine oil temperature) | On the HPOP oil reservoir at the top front of the engine | Lets the PCM adjust fuel timing, quantity and cold idle (up to 1,200 rpm when very cold) |
| EBP (exhaust back pressure) | On the HPOP reservoir: behind it on 1994.5–1997, in front of it on 1999–2003, passenger side; a metal tube runs to the passenger exhaust manifold | Measures exhaust pressure before the turbo; controls the EBPV for warm-up |
| MAP (manifold absolute pressure) | Passenger-side firewall/cowl area on a bracket, connected to the intake by a hose | Measures intake (boost) pressure |
| IAT (intake air temperature) | In the intake/air-cleaner system; exact position varies by year | Measures incoming air temperature |
Sources: TruckGuider 7.3 sensor locations, Riff Raff Diesel EBP guide, 7.3L removal and installation procedures (1996–1999 F-250), Diesel Hub ICP replacement and Ford 7.3 DIT engine information. Exact bracket and connector positions vary between OBS (1994.5–1997) and Super Duty/Excursion/E-Series (1999–2003) trucks.
1994.5–1997 OBS vs 1999–2003 Super Duty
- Same location on both: ICP (driver-side head, front), CMP (above the damper), IPR (back of the HPOP), MAP (passenger-side firewall).
- EBP moved: behind the HPOP reservoir on 1994.5–1997 trucks, in front of it on 1999–2003.
- ICP sensor style: the original International-style ICP is removed with a curved 5/8 in wrench or crow’s foot. The Ford replacement has a built-in 1-1/16 in hex. The two types are interchangeable (Diesel Hub).
How to Find and Check Each Sensor
- Scan first: read codes with an OBD-II scanner. They point you to the right sensor, for example P0340 for the cam sensor circuit or ICP codes such as P1211.
- Disconnect both batteries before unplugging sensors.
- ICP: look at the front of the driver-side head. Oil inside the connector is a common sign of a failed sensor. If the pigtail is brittle or has exposed wires, replace it. Coat the terminals with dielectric grease when you reconnect. Snug the new sensor, but don’t overtighten it.
- CMP: work from below at the front cover above the damper. One bolt holds it. A tachometer that doesn’t move while cranking is a common sign of a lost CMP signal.
- EOT: on the reservoir, top front. Ford’s procedure removes about one quart of oil from the HPOP reservoir before the EOT comes out (procedure).
- EBP: check the sensor tube to the passenger exhaust manifold for soot blockage, which can cause false readings.
- MAP: inspect the hose for cracks or leaks, which cause low-boost readings.
No-start help: 7.3 Powerstroke crank no start. Related diagrams: 7.3 fuel system diagram, 7.3 glow plug relay wiring, 7.3 injector size chart and Ford diesel oil capacity chart.
Frequently Asked Questions
Where is the ICP sensor on a 7.3 Powerstroke?
At the front of the driver-side cylinder head, threaded into the high-pressure oil gallery. The location is the same on 1994.5–1997 and 1999–2003 engines.
Where is the cam position sensor on a 7.3 Powerstroke?
On the front cover at the front of the engine, just above the crankshaft damper, at about the 11 o’clock position. A single bolt holds it.
Where is the EBP sensor on a 7.3?
On the HPOP oil reservoir toward the passenger side. It sits behind the reservoir on 1994.5–1997 trucks and in front of it on 1999–2003 trucks, with a metal tube to the passenger exhaust manifold.
Where is the IPR valve on a 7.3 Powerstroke?
On the back of the high-pressure oil pump, deep in the engine valley under the fuel filter bowl.
Where is the MAP sensor on a 7.3 Powerstroke?
On a bracket on the passenger-side firewall/cowl area, connected to the intake manifold by a hose.
Where is the engine oil temperature sensor on a 7.3?
On the HPOP oil reservoir at the top front of the engine. Ford’s procedure removes about one quart of oil from the reservoir before removing it.
What does oil in the ICP connector mean?
It is a common sign that the ICP sensor has failed internally. Replace the sensor, and replace the pigtail if the connector is oil-soaked or brittle.
