idle only. and a p2285 code
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New User
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idle only. and a p2285 code
i have a 2005 f-450 w/6.0. it will start and idle fine, but does nothing when you press on the accelerator. it is showing a p2285/2286 code. there is also a 0237 code. will replacing icp sensor fix the problem
Freshman User
Joined: Apr 2005
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From: Edmonton AB
I had exactly the same issue last month. I checked the wiring connector on the ICP and found two pins shorted to ground. The three pins should have one ground, one 5v reference voltage and the third is the sensor signal back to the ECU. I of course feared the worst, that the harness was shorted somewhere.
I had the truck towed to my dealer and they found the EBP sensor shorted. The 5v reference voltage lead is common to the EBP and the ICP sensors. The short in the EBP sensor grounded the 5v reference voltage lead and caused the ICP 2285 code. I had other codes, but my cheap generic reader only showed the 2285 and 237 codes.
I had the truck towed to my dealer and they found the EBP sensor shorted. The 5v reference voltage lead is common to the EBP and the ICP sensors. The short in the EBP sensor grounded the 5v reference voltage lead and caused the ICP 2285 code. I had other codes, but my cheap generic reader only showed the 2285 and 237 codes.
Freshman User
Joined: Apr 2005
Posts: 38
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From: Edmonton AB
The 2005 coffee table book has the wiring diagram.
https://www.ford-trucks.com/ford-man...ble%20Book.pdf
You should read ground on A, 5v on B and I think I seen 60 ohms or so to ground on C. In my case the EBP sensor (shown as EP on the wiring diagram) was shorted B to A in the EP sensor.
Good luck, thats all I can tell you. YMMV
https://www.ford-trucks.com/ford-man...ble%20Book.pdf
You should read ground on A, 5v on B and I think I seen 60 ohms or so to ground on C. In my case the EBP sensor (shown as EP on the wiring diagram) was shorted B to A in the EP sensor.
Good luck, thats all I can tell you. YMMV
Hotshot
Joined: Apr 2010
Posts: 19,072
Likes: 243
From: Saratoga Springs,UT
IF you guys have the P2285 the first check is ICPV at KOEO
If you can unplug the ICP sensor and it will let the truck start Odds are High the ICP is Bad
Granted a V-REF problem will cause alot of problems its Not Common
If you can unplug the ICP sensor and it will let the truck start Odds are High the ICP is Bad
Granted a V-REF problem will cause alot of problems its Not Common
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New User
Joined: Feb 2012
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have already replaced pigtail and ICP, the EBP is shorted between the 5v source and the return so this (i hope) will be the problem
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Hotshot
Joined: Apr 2010
Posts: 19,072
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From: Saratoga Springs,UT
so the 2 pins are continuos circuit circuit to each other I almost think that they should be I think this where the other FTE Member said he had 60 ohms between that one and Ground
You might try to unplug EBP sensor and see if it runs Better
You might try to unplug EBP sensor and see if it runs Better
Freshman User
Joined: Apr 2005
Posts: 38
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From: Edmonton AB
Id suggest just disconnecting the connector from the EB sensor. If that restores the 5v reference signal to the icp sensor connector you mayhave a problem like mine. My dealer gave me the old EB sensor and i tested it with a vom. I seen the short from the vref pin to the ground pin, proving the mechanic was correct.
New User
Joined: Feb 2012
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Update ... I replaced the EBP sensor and all problems went away. The resistance between pins A and B on the new sensor is 7.6KOhms. I had a closed circuit on the old one. I was getting the P2285 and P0237 codes immediately after clearing in KOEO. with the new sensor no codes at all thanks for everyone's input.
Hotshot
Joined: Apr 2010
Posts: 19,072
Likes: 243
From: Saratoga Springs,UT
Update ... I replaced the EBP sensor and all problems went away. The resistance between pins A and B on the new sensor is 7.6KOhms. I had a closed circuit on the old one. I was getting the P2285 and P0237 codes immediately after clearing in KOEO. with the new sensor no codes at all thanks for everyone's input.
Thats for posting Fix reps given
And the Ohms per the new sensor
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