Possible causes

– Faulty Injection Control Pressure (ICP) sensor
– Injection Control Pressure (ICP) sensor harness is open or shorted
– Injection Control Pressure (ICP) sensor circuit poor electrical connection
– EGR system fault
– Engine mechanical condition

Tech notes

There is a factory service bulletin for the following Ford models:

2003-2007 Ford F-Super Duty
2004-2007 Ford E-350, E-450
2003-2005 Ford Excursion
Ford Factory Service Bulletin OBDII Code P2263

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P2263 FORD Description

The Code P2263 is set when MGP does not go above 15 kPa or 2.2 psi when the following conditions are met: RPM must be above 2800, VFDES above 35, and EGRVP above 0.10. All of these
conditions must be present for at least 5 seconds for this code to appear. This code is used to detect a charge air cooler hose that has become disconnected. This code can also be set if there is any condition present that would cause low power. For 2003 model year this code could also be set if the difference between EP_G and EP_DES is more than 14 kPa or 2 psi for more than 15 seconds at idle or 60 kPa or 8.7 psi for 60 seconds above 800 RPM.

FORD Technical Service Bulletins for P2263 code