Code P0087 Ford: Fuel Rail/System Pressure Too Low (With Video)

The Powertrain Control Module (PCM) regulates the fuel rail pressure by controlling the fuel volume control valve and fuel pressure control valve. When

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Try replacing the fuel pressure sensor.

 

Check if there are leaks in the high-pressure pipes also.

 

Replaced both fuel pumps and the pressure sensor. No leaks, grounds are all okay. Ordered the fuel pump control module.

 

Problems still there, albeit less often than before. Really going crazy. Next sensor is the low pressure fuel sensor, which apparently is an issue on Fiesta STs.

 

New low pressure fuel line sensor fixed the issue in case anyone comes across this thread in the future

 

Im having the exact same problem as you. Replaced the fuel pump in the tank and high pressure fuel pump as well. Can you point me to the other parts you replaced. Im getting confused on the terminology for the two pressure sensors and cant seem to confidently order them or find any info for replacing them other than this.

 

Are the high pressure and low pressure sensors the same? Im having the same issue and already replaced the hpfp and am looking into the low pressure sensor to replace but ford's parts site doesn't distinguish which sensors are high or low pressure. So what sensor did you put in so i can fix this as well? Its highly maddening and I feel unsafe in my own car as it's been stalling in the road lately (mine is a manual trans non ecoboost SE and planning on turboing it soon so I HAVE to get this fixed first)

 

Low pressure: Amazon.com: XIAMI Fuel Injection Pressure Sensor for Motorcraft CM5250 Acceleration : Automotive
High pressure: https://www.amazon.com/Bosch-Origin...5&qid=1645061415&sprefix=cm5225,aps,95&sr=8-3

I suggest unplugging the low pressure (behind the engine, located on the hard fuel line BEFORE the high pressure pump) and test driving it. If that fixes your issue, replace the low pressure sensor. If it doesn't unplug the high pressure sensor (located directly on the fuel rail) and test drive.

 

What year and model car so you have?
Replacing the sensors has fixed my problems and my car runs alot better but i did find that my car uses a different high pressure sensor than the OP used on their car. I purchased the low and high pressure sensor from autozone, the low pressure is identical to the one OP shared, my high pressure sensor is grey and had a triangular 3 prong plug
Low pressure sensor: https://www.autozone.com/engine-man...ion-pressure-sensor/p/dorman-fuel-injection-pressure-sensor-926-409/1169791_0_0
High pressure sensor: https://www.autozone.com/engine-man...essure-sensor/p/gp-sorensen-fuel-injection-pressure-sensor-800-90040/821950_0_0

 

New low pressure fuel line sensor fixed the issue in case anyone comes across this thread in the future

Asking cause I'm having this issue after you replaced the pumps did you still have stalling?

 

Had this issue with my 2015 2.0 SE — low, rough idle then stall (never an issue at highway speeds). Changed the low pressure sensor and all good. One tip when removing the sensor - good idea to hold the solid fuel line to keep it from twisting too much as you turn your ratchet or wrench.

 

Same issue here and it was the low fuel pump sensor that was bad haven’t had a issue in 10 days since replacement

 

I have a check engine light with the p0087 code on my 2016 ford focus se 2.0 as well. It start and drives fine when cold or it’s been off for an hour or two but when it’s a warm engine it starts then dies out. I already replaced the hpfp. In replacing the fuel pump sensor will it fix the issue?

 

Same issue with me have you resolved it ??? Plz let me know

 

I have a 2016 focus with the 2.0 flex that has the same issues. Changed high pressure sensor, low sensor, pump in tank and new high pressure pump, changed plug on the fuel rail pressure sensor and still having intermittent times when the fuel pressure measured by the fuel rail sensor goes high (3.8ksi) and then back to normal.
Only thing I haven’t changed is the control module under the back seat, unless I have a broken wire or bad connection somewhere in the harness. I’ve removed the KAM fuse to reset the file mapping several times, but I can see on my code reader where the fuel pressure gets high.

 

Hello, did you figure out what the issue was? I am having the same issue with my 2016 2.0 flex.

 

P0087, car misfires, lot of fuel coming from the tail pipe. changed fuel pumps (both). What could be wrong?

 

Hiiii i have same issue have you resolved it ???

 

Ive replaced hpfp, low pressure fuel pressure sensor, still getting low fuel pressure at the rail car has absolutley no power