P1280 code and fuel leaking through sensor?

[rankroddin250]

I have a 96 PSD that I have been having trouble with nasty surging and rough running of and on becoming worse and worse as time goes on!
today I finaly got a P1280 code wich is injector. control preasure circuit low
wich would point me to replacing the ICP sensor but I got to goofing around today and found diesel leaking out through the electrical plug in on the fuel preasure sensor in the side of my fuel preasure regualtor... regardless im obviously going to have to replace that sensor but i was wondering if any one here thinks that might be my problem or am I going to need to replace both the fuel preasure sensor and the injector preasure control sensor? I just got done replacing the cam position sensor and it seems like a standard rate of $160 for every sensor I have replaced! this is starting to become a very expensive problem! any input would be greatly apreciated the truck is my only vehicle and daily driver and I can not aford for it to be out of service for any perioid of time

[rankroddin250]

kickin it in the top

[rankroddin250]

kickin it in the top

[dieselmt]

For one thing, that sw. is a vacuum sw. The problem your having could be the pump itself. That new ULSD is causing alot of problems like this. Causing fuel related componants to fail, unless your using off road fuel.

[rankroddin250]

none of the red stuff for me although with rising fuel cost its tempting to get a farm tank set up in my back yard thanks for the info but it still doesnt seem to help me out much just a suggestion to annother high cost part to replace LOL

[6litereater]

my truck is throwin a p1280 and a p0603. it also wont start. help please

[dieselmt]

Well 6litereater I'm back. have been busy. The P1280 is definatly a circ. concern w the icp harness vref or signal return circ'.s. Or it may be a pcm internal short. You need to inspect the harness very carefuly for any chaffing or breaks in the insulation. I assume you've already replaced the icp sensor? There have been numourous problems with harness chafing at the bulk conector at the L.valve cover area. Let me now your findings. Without a dvom & me testing it, it could be any of the things I told you. Good luck! David