Ford EscapeThe Ford Escape has been thoroughly updated, reinforcing the character and appeal that have made it America's perennial best-selling small sport-utility vehicle. The improvements nearly cover the spectrum, and inject a new level of refinement. We'd call the Escape a little truck among small SUVs. Its new styling deliberately invokes Ford's larger, truck-based SUVs.
My check engine as been on in my 05 Escape for about a week now. I had stopped by my mechanic to have the code checked and it came back saying (Fuel Rail Pressure Sensor Circut high input P0193). Does anybody know what this means? It's still running and driving the same, no new problems. I ordered the sensor from the dealership (dealer item, go figure). Has any one changed the sensor on there escape, if so how difficult was it to change? Any help would be appreciated. I forgot to mention its a V6 and a Limited if this helps also.
My guess is that the sensor is giving a higher reading than expected, could be a problem with the sensor, or the sensor may be accurate, and the fuel pressure regulator may be bad.
__________________
BroncoJoe19
2006 Alt Fuel Jeep (electric)
'98 windstar 3.8L
'99 Crown Vic 4.6L
'90 Full Size Bronco 5.0L
I'm not a professional mechanic, take my suggestions with a grain of salt, or a cup of coffee
At the bottom of each post there is a little icon
Clicking it gives feedback to the moderators, and poster regarding which posts are most helpful.
"high input" usually means the output of the sensor is stuck at its maximum output voltage, which IIRC is ~5 volts on that sensor. Basically the voltage signal from the sensor should always be changing, and if the PCM sees no activity and the voltage is near one of the limits (ie 0V or 5V) then it suspects there is a sensor fault or a short-circuit.
This sensor is critical on returnless systems as it is the feedback to tell the PCM how to drive the fuel pump to maintain the proper fuel pressure over changing load and engine vacuum conditions.
The PCM IIRC has a fail-safe table to follow to approximate fuel delivery with a bad sensor, but I am sure it is far from optimum, so I'd fix it.
On the 4-cylinder it is easy, couple of bolts and a vac hose, it is right dead center on the rail. Not sure on the V6 though, but should also be pretty easy.
"high input" usually means the output of the sensor is stuck at its maximum output voltage, which IIRC is ~5 volts on that sensor. Basically the voltage signal from the sensor should always be changing, and if the PCM sees no activity and the voltage is near one of the limits (ie 0V or 5V) then it suspects there is a sensor fault or a short-circuit.
This sensor is critical on returnless systems as it is the feedback to tell the PCM how to drive the fuel pump to maintain the proper fuel pressure over changing load and engine vacuum conditions.
The PCM IIRC has a fail-safe table to follow to approximate fuel delivery with a bad sensor, but I am sure it is far from optimum, so I'd fix it.
On the 4-cylinder it is easy, couple of bolts and a vac hose, it is right dead center on the rail. Not sure on the V6 though, but should also be pretty easy.
Excellent description !
Continued driving using the "fail-safe" table values could cause rich or lean conditions which might show up as incorrect errors codes for the O2 sensors.
__________________ Peace, it's our only chance
1998 E150 Club Wagon, 4.6L Modular, E4OD
2007 Milan. 3.0L Duratec, Aisin 6 speed AW-F21 others I look out for
2007 Escape 2wd (the mini Pumpkin), 3.0L Duratec, CD4E
2008 Mazda3 5 door, 2.3L, 5 speed manual
Shopping for new Ford can be a stressful experience especially if you don't have the right information. Our new car research center at CarEverything.com can help relieve this stress and bring the joy back to new car buying!
The Car Blog, or TCB for those who are acronymically inclined, is alive because some of today's top Web designers needed a place to drool and bitch about their motor vehicle obsessions.
Read the auto blog at Automotive.com to get the latest news and opinions, view the newest concept cars, and join discussions with auto experts from around the world.
Fuel Rail Pressure Sensor 
Hybrid Mode
