Help Needed help engine died

[tommydawg]

can any help me ,my 97 7.3 died last week I changed the fuel filter and cam sensor I pulled 2 fault codes p1211 and p1212 can anyone point me in the right direction Im pretty sure its a fuel deleverey problem I just cant pin point the problem. thanks

 

[bbressler]

Those codes are related to the ICP, you don't happen to have the 10K mod, do you?? If you did, I'd try removing that and see if it's any better....or you may try replacing the ICP sensor.

 

[tommydawg]

thanks ben ,can you tell me where the ICP sensor is located on my 97

 

[bbressler]

Yup...

should be right behind the AC compressor.

Looking for a picture...

 

[bbressler]

Here's one for a newer truck, but you're should be in the same spot. Where this picture has alternator, your compressor is....so keep that in mind. I guess I really should go take a good picture for you...

http://forgotton.net/mods/pic01.jpg

 

[95_stroker]

The ICP sensor is the only sensor on the front of the left head.

 

[Paul H]

Quick note.

The injectors need something above 500 psi to fire, If you have a bad ICP you can unplug it and try to start the engine. Seeing no ICP signal, the PCM will use a default setting of 750psi as a pass / fail pressure for the IPR.

It will throw a CEL but will start.

if it does not start, you may have an o-ring blown on the end of the IPR not allowing it to build injection pressure.