Recommended Procedure

WARNING: This page is about a different car, the 2003 Ford Pickup, 2003 Ford F550 Super Duty, 2003 Ford F450 Super Duty, 2003 Ford Excursion, and 2003 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Inspect for a hole in the MAP sensor hose or a pinched hose.
Inspect fuel system, including the fuel tank, fuel pump, fuel filter housing and fuel lines, for kinks, bends or leakage.
Inspect for coolant leaks at the radiator and coolant hoses. Also check coolant level.
Inspect wiring for correct routing, and make sure no rubbing or chafing has occurred.
Inspect all sensors, and make sure outputs from the PCM are properly connected.
Inspect intercooler hoses for leaks.