ICP no start?

[Help]

I have a 99 7.3 PS it died in jan.when it was about 30 below. I thought it was cps but replaced that, changed oil, made sure there was oil in the high pressure pump ,replaced fuel filter, checked glow plug relay,still nothing. had a mechanic come out and scan it and he got a code for the ICP. It started for him which was surprising since it wouldnt for me. he was going to test drive it and made to the end of the driveway, about a 1/4 mile, and it quit. He suggested some injector cleaner but wont start so it can go through. Any ideas? I would take it to the dealer but I live in a remote part of Montana and the nearest one is an hour and half away and there are no tow trucks around anyway.

[bryanbrown]

unplug the icp sensor. The computer defaults to a certain oil pressure when the sensor is unplugged. It will throw the CEL. I have a problem with mine, I think the sensor is going bad, and it idles really eratically when plugged in. I unplugged it, and it runs fine. something to try. good luck

[Help]

I unplugged the ICP and still nothing. it smoked a little bit but that was it .

[SCUFFY828]

, you said you changed the fuel filter , when you did that did you have plenty of fuel in the bowl ,was it empty , low fuel pressure can cause icp code p1211 , or was your code p1212 , does your buddies scanner read
live data , if so ,get him to monitor icp pressure during cranking and see if it goes up to at least 450-500 lbs of icp pressure , if not you might have a high pressure pump gone out, quick way to know if your getting fuel pressure ,
release the fuel drain and turn the key on ,if it barely runs out you probably dont have fuel pressure , if sprays out pretty good fuel press should be ok, just a way to check it without a gauge , done that when on side of road before , start with that and well go from there , by the way what part of montana you from ,just curious , i come out that way every year and hunt ,
we stay a a friends house in north eastern part and hunt south dakota around the camp crook area if youve ever heard of that

[Help]

Im not sure which code number he got. When I changed the filter I didnt get the lid on tight enough and had fuel spraying everywhere though.

[Help]

Northeast Montana in a little town called Outlook

[SCUFFY828]

that should mean the fuel pressure is ok, if oil is full ,and in good shape and you have a icp code , the only way to know what is going on is to have it hooked to a good scanner , monitor icp pressure , run injector buzz test ,
that will make sure all wiring and electrical is good ,if you can get that done and get back with me be glad to help out

[Help]

He did a buzz test and they all sounded that is when it started the first time. I guess ill have to pull it into town with the tractor or something to get him to do some more tests. I had one side of the under valve cover harness replaced a while back, do you think the otherside could cause something like this?

[SCUFFY828]

yes it could , it is also possible for the short harness under the valve cover to cause enough high resistance to damage injector driver module , but some more
diagnosis can determine more

[howardtm]

Take careful heed to Scuffy...he KNOWS his stuff! Nialed my problem right off the bat when the dealers did nothing but drain my bank account. Just as soon as I can sell this small E350 box, I'm planning on coming do to see ya big guy..so be warned..LOL