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Jul 24, 2010 | 10:00 PM

JethroF250

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UPDATE

well as you guys might know my rig was throwin me for a loop last night. i got home and pulled code 1280 which is ICP Sens Circ Output Range Low. so i cleared the code in suspision that my 20k icp mod might be why the truck was run so rough on bumpy roads and occasionally would shut down. so i cleared the code today and drove the truck. after bout two hours she acted up a little but not as bad as last night. so i came home and pulled the 1280 code yet again even after it was cleared. so im suspecting that the icp mod has a bad connection and is causing the rough rpm's on bad roads and the occasional shut down. so i guess from here im just gonna put in a piece of wire where the resistors originally were and hope for the best. thanks for the help guys wish me luck.

Jul 24, 2010 | 10:09 PM

fordpride

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From: Livoina,La

I'd say redo the connections on it and see what happens.

But atleast you know your on the right track

Jul 24, 2010 | 10:19 PM

JethroF250

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well i figured use my knogin for once and clear the code and see if it comes back. and it did so that has got to be the problem

Jul 25, 2010 | 08:36 AM

Talyn

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From: Ashland City, TN

Just get a chip already man!

Jul 25, 2010 | 03:56 PM

JethroF250

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i redid the connections today. started the truck and it was idling as if someone unplugged my icp sensor. so i shut it off and cleared the p 1280 code. started it up and still rough idle and now cel. p1280 came up again. so i cleared it for the third time and retuned the truck back to stock and tried unplugging the icp. started it up and it didnt idle as rough but still had a cel. same p1280. im stumped now cause i redid the connection and it is still saying ICP Sens Circ Output Range Low. any ideas guys?

Jul 25, 2010 | 04:00 PM

fordpride

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From: Livoina,La

Have you tried takeing the resistor out to see if it's bad

Jul 25, 2010 | 04:20 PM

Action4478

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Jul 26, 2010 | 05:05 AM

drivembig

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From: NC

Change the pigtail first before you do anything.....I fought mine for months and changed the pcm and the icp and it ended up only being a bad plug on the icp sensor. Its the cheapest thing to try.

Jul 26, 2010 | 07:19 AM

#10

Talyn

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From: Ashland City, TN

Ouch drivembig. Thats an expensive fix changing out the PCM to have it only be a bad connector.

I"m betting oil getting in there ruins the connectors too.