a while ago Lisa's truck jelled up and the qustion was asked why did the pcm thow a ICP code..i just read this quote on a thread from a guy that had trouble with high ICP and truck would stall out.i know Lisa did have ICP trouble...his problem was in his fuel bowl..but none the less..gelling will do the same..just thought id share it with you guy's weather its worth it or not..

Re: Whats causing my hpop pressure to climb untill the truck dies
<HR style="COLOR: #d1d1e1" SIZE=1><!-- / icon and title --><!-- message -->I thought I'd give an update to the fix on this truck for anybody that pulls this thread up in a future search.

So the fuel checked out fine and the injectors were sent off to Jim at Rosewood diesel shop and they checked out fine.

And the answer to this whole mess is.......The standpipe in the fuel filter housing failed. The valve was stuck closed,the little rod that pushes it open was tweeked along with the spring on the bottom. the truck was simply running out of fuel.
The fuel pressure checked out fine because I tested it at the fuel filter housing, if I had tested it at the head it would have shown that it had no fuel.

So there you have it, <ACRONYM title="Injection Control Pressure">icp</ACRONYM> will climb as your truck runs out of fuel, apparently.
<!-- / message -->

 

Very interesting Ron. Thanks for posting it up.

 

Nice info to have in the back pocket. Thanks Ron

 

That actually makes sense. As the fuel pressure gets lower & lower from the bowl, I can see the ICP climbing to try to get more into the cylinder. DUH!! Should've thought of that....

 

Thanks for sharing good info