Recommended Procedure

WARNING: This page is about a different car, the 2008 Ford Pickup, 2008 Ford F550 Super Duty, 2008 Ford F450 Super Duty, and 2008 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Connect the scan tool.
Key ON, engine OFF.
Access the EGRVP PID and record the closed EGR valve position voltage.
Access EGRVPDES PID and command the EGR valve from 0% to 100%.
Record the EGR valve open position voltage.
Subtract the closed EGR valve position voltage from the open EGR valve position voltage.
If the valve travel and travel voltage are below specification, install a new EGR valve. Refer to ENGINE EMISSION CONTROL -- F-250-550 (SUPER DUTY PICKUPS) . Reset the keep alive memory (KAM), refer toRESETTING THE KEEP ALIVE MEMORY (KAM) . Clear the DTCs. Repeat the self-test.

Connect the scan tool.
Key ON, engine running.
Access the EGRTP PID and command the intake throttle from open (5%) to close (95%).
The engine should run normal when the intake throttle is open (MAP PID approximately 14.35 psi), engine may run rough when 85% closed (MAP PID approximately 9.2 psi) and the engine should stall or almost stall when the intake throttle is closed.
If the MAP PID value does not change more than 3 psi, refer to PINPOINT TEST AX - INTAKE THROTTLE .