3 Error Codes
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3 Error Codes
Hi All,
My 05 Escape gave me these codes through an OBDII diagnostic using the ForScan app.
I believe it is one cause causing a trickle down effect. Which one do you think is the culprit?
I ruled out air intake restriction because I took the intake off. I could hear little intake backfires through the intake.
Since this started, I could also hear some kind of air build-up and a release that sounds like a quiet siren that cycles about once every 10 seconds. Generally, I just hear this at idle, not at speed.
Here's what the OBD says:
OBDII w/ForScan
P0190-FF Fuel Rail Pressure Sensor
A circuit malfunction
Possible causes - V-Ref open in harness
V-Ref open in sensor
P2196-FF H02S11 not switching correctly. Sensor indicates rich
Low manifold vacuum on TMAP systems only
High fuel pressure
May be caused by intake air restriction
P2198 - O2 sensor stuck rich - Bank 2 - Sensor 1
Suspect HQ2S21
Dirty air filter
Code may be caused by:
High fuel pressure
Damaged fuel injector
Suspect PCM
Thanks for your thoughts.
Will
My 05 Escape gave me these codes through an OBDII diagnostic using the ForScan app.
I believe it is one cause causing a trickle down effect. Which one do you think is the culprit?
I ruled out air intake restriction because I took the intake off. I could hear little intake backfires through the intake.
Since this started, I could also hear some kind of air build-up and a release that sounds like a quiet siren that cycles about once every 10 seconds. Generally, I just hear this at idle, not at speed.
Here's what the OBD says:
OBDII w/ForScan
P0190-FF Fuel Rail Pressure Sensor
A circuit malfunction
Possible causes - V-Ref open in harness
V-Ref open in sensor
P2196-FF H02S11 not switching correctly. Sensor indicates rich
Low manifold vacuum on TMAP systems only
High fuel pressure
May be caused by intake air restriction
P2198 - O2 sensor stuck rich - Bank 2 - Sensor 1
Suspect HQ2S21
Dirty air filter
Code may be caused by:
High fuel pressure
Damaged fuel injector
Suspect PCM
Thanks for your thoughts.
Will
Moderator
Joined: Nov 2007
Posts: 22,415
Likes: 92
From: Denver Metro Area, CO
Ford's general approach to dealing with multiple codes is to begin with the lowest-numbered code first (the fuel pressure sensor in your case)... fix the cavity.
You have a cavity in your tooth, produces code 23.
You have a headache, produces code 86.
Your jaw hurts, code 42.
Fix the cavity and all those things go away.
~~
Be very careful reading & interpreting codes, though... I have never heard of anything with a "-FF" suffix, could that be something that pertains only to vehicles equipped with the Flex Fuel configuration? No idea, do your homework here (myself, I would just take it to a parts store and have them pull the codes for me, I wouldn't rely on any of these third-party thingies).
More Turbo
Joined: Dec 2013
Posts: 522
Likes: 13
From: Upstate NY
I completley agree unless the nearest location to have codes pulled for you is too far to be considered convenient or if the vehicle is DOA and not operable. Even then, I would have a parts store pull codes after I had it running.
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I ended up changing out the sensor itself and all is well. Running smooth, check engine light off and gas mileage is better.
I figured that siren sound was the fuel pump. It was coming from the area of the fuel tank. My guess is that seeing it had no specific voltage guidance, it was a runaway train. It would cycle from high to low rpm about once every 5-10 seconds.
Thanks for your thoughts peeps.
I figured that siren sound was the fuel pump. It was coming from the area of the fuel tank. My guess is that seeing it had no specific voltage guidance, it was a runaway train. It would cycle from high to low rpm about once every 5-10 seconds.
Thanks for your thoughts peeps.
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