Hey has anyone had this problem? Got a no start truck and plugged scan tool in and got this code. Not sure where this located due to no manual yet and cant find it online. code is 2291

 

When you are posting for help, list your vehicle specifics in the post (year, type of vehicle, etc). This way the people helping you do not have to search for it.

The 2291 code PROBABLY means a leaking High Pressure Oil Pump fitting or sensor leak. The injectors are fired with high pressure engine oil used as a hydraulic actuating fluid. If you can not get the oil to pressure, the engine will not start and you will get DTC 2291. Check for oil leaks around the top of your engine. It may start when it is "COLD" rather than hot under these circumstances. With this one it may be best to get it to the dealership unless you have a way of measuring the high pressure oil pressure (2000 - 3000 psig) or detecting small oil leaks (they use dye in the oil)

If you are still looking for the ICP (which it very well may not be bad):

These references will help you locate the ICP.
<TABLE style="WIDTH: 569pt; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=759 border=0 x:str><COLGROUP><COL style="WIDTH: 569pt; mso-width-source: userset; mso-width-alt: 27757" width=759><TBODY><TR style="HEIGHT: 12.75pt" height=17><TD class=xl24 style="BORDER-LEFT-COLOR: #d4d0c8; BORDER-BOTTOM-COLOR: #d4d0c8; WIDTH: 569pt; BORDER-TOP-COLOR: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent; BORDER-RIGHT-COLOR: #d4d0c8" width=759 height=17>

6.0L Bible and 05 Update:

</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl25 style="BORDER-LEFT-COLOR: #d4d0c8; BORDER-BOTTOM-COLOR: #d4d0c8; WIDTH: 569pt; BORDER-TOP-COLOR: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent; BORDER-RIGHT-COLOR: #d4d0c8" width=759 height=17>http://dan.prxy.org/Truck/6L_bible_html/html/TOC.html</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl25 style="BORDER-LEFT-COLOR: #d4d0c8; BORDER-BOTTOM-COLOR: #d4d0c8; WIDTH: 569pt; BORDER-TOP-COLOR: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent; BORDER-RIGHT-COLOR: #d4d0c8" width=759 height=17>http://dan.prxy.org/Truck/6L_bible_html/05_update/html/05_Update_TOC.html</TD></TR></TBODY></TABLE>

If yours is a late 2004, it may be on the valve cover - look it up in the references above and then see if it is on the drivers side valve cover. If it is not located on the valve cover, you have an early 04.

The 03 and early 04 models model years have the ICP buried and it is a pain to change. They have somewhat of a history of failing. The link below will help you change it out.

<TABLE style="WIDTH: 550pt; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=733 border=0 x:str><COLGROUP><COL style="WIDTH: 550pt; mso-width-source: userset; mso-width-alt: 26806" width=733><TBODY><TR style="HEIGHT: 11.25pt" height=15><TD class=xl25 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 550pt; BORDER-BOTTOM: #d4d0c8; HEIGHT: 11.25pt; BACKGROUND-COLOR: transparent" width=733 height=15>Early Style ICP Sensor change</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 550pt; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent" width=733 height=17>https://www.ford-trucks.com/forums/f50/how-replace-early-icp-pictures-172279/</TD></TR></TBODY></TABLE>