- Member ID
- #1740
- Messages
- 38
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- 15
Chasing an intermittent fueling issue. Car would stall at speed giving the P0087 "Low Fuel Rail Pressure" code. Replaced the low pressure fuel pump, high pressure fuel pump, and EVAP system. Problem persists.
Looking at the other EcoBoost forums, some guys with similar problems have had luck replacing the fuel rail pressure sensor and/or fuel pump driver module. I've got a new FRP sensor on order, but I cannot for the life of me find the fuel pump driver module (FPDM).
I pulled the back seat & all the plastic trim from the b-pillars back. I pulled up the rear carpeting & sills. Pulled out the spare wheel & trim in the trunk. Jacked up the rear and looked all over the subframe. Traced the fuel pump wires but they all run to the main harness up towards the ECU. Web searches yielded absolutely nothing. If this thing exists, it's really fucking elusive.
Does anyone know if the 2014 Fiesta ST uses a FPDM, and if so, where it's at?
This is what I think the part should look like:
https://photos.app.goo.gl/21xATyon4DmjuReP2
It appears to show up on the parts diagram (9D370), but neither Ford nor aftermarket vendors list it:
https://photos.app.goo.gl/huTHZjm8gw0HdBSq1
However, Ford does sell a pigtail wiring kit for it - WPT521:
https://photos.app.goo.gl/C6D7HW8EFr3ph3k52
And if ebay listings are to be believed, it is apparently installed on Fiesta STs:
https://photos.app.goo.gl/D4NqdKiLRgAyYYQa2
So for the sake of my sanity - does anyone know where the hell this thing is or if it's even installed on our cars?
Looking at the other EcoBoost forums, some guys with similar problems have had luck replacing the fuel rail pressure sensor and/or fuel pump driver module. I've got a new FRP sensor on order, but I cannot for the life of me find the fuel pump driver module (FPDM).
I pulled the back seat & all the plastic trim from the b-pillars back. I pulled up the rear carpeting & sills. Pulled out the spare wheel & trim in the trunk. Jacked up the rear and looked all over the subframe. Traced the fuel pump wires but they all run to the main harness up towards the ECU. Web searches yielded absolutely nothing. If this thing exists, it's really fucking elusive.
Does anyone know if the 2014 Fiesta ST uses a FPDM, and if so, where it's at?
This is what I think the part should look like:
https://photos.app.goo.gl/21xATyon4DmjuReP2
It appears to show up on the parts diagram (9D370), but neither Ford nor aftermarket vendors list it:
https://photos.app.goo.gl/huTHZjm8gw0HdBSq1
However, Ford does sell a pigtail wiring kit for it - WPT521:
https://photos.app.goo.gl/C6D7HW8EFr3ph3k52
And if ebay listings are to be believed, it is apparently installed on Fiesta STs:
https://photos.app.goo.gl/D4NqdKiLRgAyYYQa2
So for the sake of my sanity - does anyone know where the hell this thing is or if it's even installed on our cars?