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Old Apr 6, 2020 | 05:51 PM
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P1280

P1280
I’ve looked over this and everything I see to check measures accordingly ( https://www.ford-trucks.com/forums/831355-trouble-code-p1280.html )

Alittle prior info. Awhile ago I was driving along truck died. I got it started but was running really rough. Pulled into a parking lot checked the codes. Can’t remember what came up but I unplugged the icp and have Been driving it since. But the SES light is driving me nuts. Also seen when I pulled the codes today it had a p0237 up and the P1280 come back up as soon as it is cleared. Plugged or unplugged I don’t see any change in the value. Could the sensor it’s self cause this? There is NOT any oil in the plug and the pig tail has been replaced.



 
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Old Apr 6, 2020 | 07:49 PM
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I forgot to add The sensor was replaced with a parts store sensor awhile ago for the same code and it went away. For awhile now it’s back.
 
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Old Apr 7, 2020 | 01:55 AM
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My guess is the ICP sensor is sub par and PCM is not happy and throwing the P1280.

You could log a short run showing the ICP psi and Duty Cycle and we could see if the curves look realistic. It's a way to see if the ICP sensor is working properly.

Ford or IH only for sensors on these suckas, sorry to say.
 
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Old Apr 8, 2020 | 07:37 PM
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Originally Posted by aawlberninf350
My guess is the ICP sensor is sub par and PCM is not happy and throwing the P1280.

You could log a short run showing the ICP psi and Duty Cycle and we could see if the curves look realistic. It's a way to see if the ICP sensor is working properly.

Ford or IH only for sensors on these suckas, sorry to say.
i couldn’t figure out the log part of the app so I tried to take a video of it which is kind of hard since I can’t screen record on the tablet like I can my iPhone.
 
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Old Apr 9, 2020 | 01:12 PM
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Originally Posted by jake19xx
i couldn’t figure out the log part of the app so I tried to take a video of it which is kind of hard since I can’t screen record on the tablet like I can my iPhone.
https://www.dropbox.com/s/5zrbtjqi6s...ender.mov?dl=0
 
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