Ford 6.7 Powerstroke ICP Sensor Location: Why It’s Actually the FRP Sensor
If you’re searching for the ICP sensor on your 6.7 Powerstroke, stop looking — it doesn’t exist on this engine. That search habit carries over from the 6.0L and 7.3L Powerstroke platforms, where ICP (Injection Control Pressure) is a real, well-known component.
The 6.7L Powerstroke runs a completely different fuel system, and the part doing the job you’re thinking of is called the FRP sensor — Fuel Rail Pressure sensor.
This guide covers why the naming is different, where the FRP sensor actually sits on your engine, which OBD codes point to it, what failure looks like, and what replacement costs.
Why the 6.7 Powerstroke Doesn’t Use an ICP Sensor (HEUI vs. Common Rail)
The ICP sensor is specific to HEUI (Hydraulic Electronic Unit Injection) fuel systems, used on the 6.0L and 7.3L Powerstroke engines. In a HEUI system, high-pressure engine oil — not fuel — actuates the injectors, and the ICP sensor monitors that oil pressure so the PCM can fire the injectors at the right moment.
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The 6.7 Powerstroke (2011–present) abandoned HEUI entirely in favor of a Bosch high-pressure common-rail system. A single high-pressure pump pressurizes fuel directly and feeds it into a shared fuel rail, which supplies all the injectors. Instead of monitoring oil pressure for injector actuation, the truck needs to know the actual fuel pressure inside that rail — and that’s the FRP sensor’s job.
Worth noting: some aftermarket listings sell the 6.7’s FRP sensor under the keyword “ICP” purely for search visibility, since that’s the term Powerstroke owners are used to typing. It’s the same physical location and function as what parts catalogs correctly label FRP or “Fuel Rail Injection Pressure Sensor” — just be aware the ICP label on a 6.7-specific listing is a naming shortcut, not a different part.
Aftermarket catalogs list a different high-pressure pump part number for 2020–2022 trucks versus 2011–2019 trucks, which points to a hardware revision on the pump side for later model years. The FRP sensor part number itself (below) does not change across this split, so the sensor swap process is consistent 2011–2020.
6.7 Powerstroke FRP Sensor Location
The FRP sensor is mounted directly on the fuel rail itself, since its job is to read pressure at the rail — not somewhere downstream. On the 6.7 Powerstroke, the sensor sits on the front of the fuel rail, where it measures the pressure coming from the high-pressure fuel pump (the Bosch CP4).
To reach it, you’ll need to remove the hot-side intercooler pipe first — the charge pipe running from the turbo to the intercooler across the front of the engine. Once that’s out of the way, the sensor is accessible with a 1-1/16″ socket. This is a separate job from the fuel pressure regulator, which sits on the back of the same rail and handles a different function (regulating pressure rather than reporting it) — don’t confuse the two when you’re under the hood.
Ford Truck Enthusiasts forum thread on a 2017 F-250 6.7 Powerstroke high fuel pressure code diagnosis. This is owner/technician-reported detail rather than an official Ford service diagram — cross-check against motorcraftservice.com’s component location diagram if you want OEM confirmation before publishing, but the front-of-rail position and hot-side pipe removal step are consistent with how the fuel rail pressure sensor and regulator are described across multiple sources for this platform.
For a full visual reference of how the fuel rail, pump, and related lines connect on your engine, see our 6.7 Powerstroke fuel system diagram.
OBD Codes That Point to the FRP Sensor
When people search “ICP sensor” on a 6.7 Powerstroke, they’re usually chasing one of these codes:
| Code | Definition |
|---|---|
| P0191 | Fuel Rail Pressure Sensor Circuit Range/Performance |
| P0192 | Fuel Rail Pressure Sensor Circuit Low |
| P0193 | Fuel Rail Pressure Sensor Circuit High |
| P0087 | Fuel Rail/System Pressure Too Low |
| P0088 | Fuel Rail/System Pressure Too High |
P0191–P0193 point specifically to the sensor or its wiring — a bad reading, an out-of-range signal, or an open/short circuit. P0087 and P0088 are broader: they mean the PCM sees an actual pressure problem in the fuel system,
which can be caused by the sensor giving a bad reading, but can just as easily point to the high-pressure pump, a fuel line restriction, or the fuel pressure regulator. Don’t assume it’s the sensor just because one of these codes shows up — the system-level codes need a wider diagnostic net.
If your symptoms and codes are leaning toward the pump itself rather than the sensor, our 6.7 Powerstroke CP4 failure symptoms guide breaks down how to tell the difference.
Symptoms of a Failing FRP Sensor
- Hard start or no-start — the PCM can’t confirm rail pressure is where it should be before commanding injector fire
- Rough idle or hesitation under load — inconsistent pressure readings cause the PCM to over- or under-fuel
- Check engine light with one or more of the codes above
- Reduced power / limp mode — if the PCM can’t trust the pressure signal, it may pull timing or fuel to protect the engine
One 2011 F-350 6.7L owner reported the truck stalling and dying at a stop sign after weeks of an intermittent P0193 code, with the check engine light coming on with no symptoms the first time, then a hiccup during start about a month later, and the truck dying at a stop sign a couple weeks after that.
By the time the truck could barely run, the owner’s tuner showed fuel pressure sitting at roughly 5,000 to 6,000 PSI at idle — notably low for a system that runs the rail at much higher pressures under normal operation. The Diesel StopThe Diesel Stop
A separate 2011 6.7L Crew Cab owner logged the failure at 108,000 kilometers (about 67,000 miles), with the check engine light for a P0193 circuit-high code appearing, clearing on its own for a while, then progressing to limp mode and stalling.
That owner replaced the FRP sensor at a Ford dealer, but the symptoms returned after the truck sat in wet weather — pointing to a possible connector or moisture issue rather than a straightforward sensor failure, and underscoring why electrical inspection (not just parts-swapping) matters before condemning the sensor. Ford Powerstroke Diesel Forum
On the DIY side, one 6.7L-specific case documented by Go-Parts (sourced from a PowerStrokeArmy repair thread) noted the check engine light staying on for months with P0193 as the only code, alongside unrelated electrical symptoms like door controls not resetting — a reminder that P0193 can show up as an isolated nuisance code rather than a dramatic failure.
Replacing the sensor is generally a straightforward DIY job that can be done in under two hours, and the CP4 high-pressure fuel pump should not be replaced for this code alone since it isn’t the cause. Go-PartsGo-Parts
The Diesel Stop / PowerStroke.org owner thread (2011 F-350 6.7L), PowerStroke.org owner thread (2011 6.7L Crew Cab), Go-Parts.com diagnostic reference citing a PowerStrokeArmy repair thread — all forum/community-verified data, presented as supporting evidence per site sourcing standards rather than OEM specification.
How to Test the 6.7 Powerstroke FRP Sensor
- Pull codes with an OBD-II scanner first — confirm whether you’re seeing a sensor-circuit code (P0191–P0193) or a system pressure code (P0087/P0088)
- Check live data — compare actual rail pressure against commanded rail pressure on a scan tool that supports enhanced Ford PIDs. A large, persistent gap between the two points to either the sensor or the pump/regulator, not a fluke reading
- Inspect the electrical connector at the sensor for corrosion, damage, or a loose pin before condemning the sensor itself
- Rule out the pump and regulator — if pressure never comes up regardless of what the sensor reports, the fault may be upstream (see the CP4 guide linked above) rather than the sensor
- If you don’t have access to enhanced PIDs or the diagnosis isn’t conclusive, this is a reasonable point to hand off to a diesel specialist rather than guessing with parts
“Compare actual rail pressure against commanded rail pressure on a scan tool that supports enhanced Ford PIDs, rather than checking against a fixed idle spec — the PCM’s commanded value is your real-time reference point. A large, persistent gap between actual and commanded pressure points to the sensor, pump, or regulator, regardless of the exact number either reads.”
Our 6.7 Powerstroke fuel pressure regulator guide covers the regulator side of this diagnostic path in more depth if the sensor checks out fine.
FRP Sensor Replacement: Part Number and Cost
The confirmed part number for the 6.7 Powerstroke (2011–2019/2020) fuel rail pressure sensor is BC3Z-9F838-A, sold under both genuine Ford/Motorcraft branding and multiple aftermarket brands.
Researched pricing for this exact part number:
- Aftermarket: roughly $19–$23
- Genuine Ford OEM: roughly $110–$115
That’s a meaningful gap, and it’s worth knowing before you buy: this is a sensor, not a structural part, so quality aftermarket options are a reasonable choice for most owners, especially if you’re already deep into other diesel maintenance and watching the budget. If you’ve had reliability issues with aftermarket sensors on other systems, or you want the safety of a factory part with Ford backing, the OEM route is there too, just at roughly 5x the aftermarket cost.
Replacement itself is a sensor swap rather than a full fuel system rebuild, but because it’s mounted on a pressurized fuel rail, proper depressurization and cleanliness at the fitting matter — fuel system contamination is a real risk if the area isn’t kept clean during the swap. If you’re not confident working around a pressurized common-rail fuel system, this is a reasonable job to hand to a diesel shop.
6.0/7.3 ICP vs. 6.7 FRP Sensor: Quick Comparison
| Engine | Sensor Name | Fuel System | What It Monitors |
|---|---|---|---|
| 6.0L / 7.3L Powerstroke | ICP (Injection Control Pressure) | HEUI | High-pressure oil that actuates the injectors |
| 6.7L Powerstroke | FRP (Fuel Rail Pressure) | Bosch common rail | Actual fuel pressure inside the rail |
If you’re coming from a 6.0 or 7.3 and want the ICP-specific diagnostic process for that platform, see our 7.3 Powerstroke ICP sensor location and diagnostics guide.
FAQ
Does the 6.7 Powerstroke have an ICP sensor?
No. The 6.7 Powerstroke uses a Bosch common-rail fuel system with an FRP (Fuel Rail Pressure) sensor instead. ICP sensors are only found on the HEUI-based 6.0L and 7.3L Powerstroke engines.
What does P0192 mean on a 6.7 Powerstroke?
P0192 indicates the PCM is reading a Fuel Rail Pressure Sensor Circuit Low condition — either a faulty sensor, a wiring issue, or an actual low-pressure condition in the fuel rail.
How much does it cost to replace the FRP sensor on a 6.7 Powerstroke?
Aftermarket sensors run roughly $16–$40; OEM Motorcraft pricing on the closely related 6.4L platform runs $85–$95, giving a reasonable estimate for 6.7L OEM cost pending direct confirmation.
Can a bad FRP sensor cause a no-start on a 6.7 Powerstroke?
Yes. If the PCM can’t confirm rail pressure is within range, it can prevent injector firing or command an incorrect pressure, which can result in a hard start or no-start condition.
