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Discussion Starter · #1 ·
Does anyone happen to have a picture/diagram of where the sensor is located...im having a hell of a time trying to find one for a 2005 focus...smh
 

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At the top front of your engine (in front of the valve cover) are the fuel injectors, with a straight "fuel rail" from left to right on top of them.

This is all between the valve cover & the black plastic intake manifold.

On the fuel rail is a box with both a wire connector & a hose leading to the intake. That part is the sensor.

Hose is a vacuum hose for reference pressure from the intake, if fuel is found in the hose you know the sensor diaphragm is damaged & leaking - time for replacement.

What is the problem you're looking to fix?
 

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Are you getting an error code that is telling you this? P0193......

Possible issues for a fuel rail pressure sensor circuit high input error;
- Low or no fuel
- Fuel Rail Pressure Sensor harness is open or shorted
- Fuel Rail Pressure Sensor circuit poor electrical connection
- Faulty Fuel Rail Pressure Sensor
- Faulty Fuel Pump

Have you tested anything or are you just going off an assumption that it is the sensor that is at fault? could be a loose wire or low fuel pressure! Cheaper to test these things than to just throw parts at them. [;)]
 

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Discussion Starter · #5 ·
Had diagnostic at Good Year n P0193 fuel rail voltage high came up...cant afford THEIR rates or to just "throw parts at it" lol
 

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A lot of mechanics/shops will scan your car and tell you to replace a part based on the code. Often, it's not the part that's faulty, and you will keep replacing things until you discover that it was a loose wiring connection (or some other simple fix) all along.

GhostTribute has it right--there are a number of conditions that can cause that code, so it's better to spend a bit more on diagnosis than to start replacing parts and hope you get lucky on the first try.

Sailor mentioned to pull that vacuum hose and check if there's fuel in the hose, and if so, then you need that sensor. Also check that the wiring connector is tight, and for broken insulation or corrosion/moisture. That will eliminate two of the potential causes...or confirm one.
 
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