other self-tests or driving vehicle.
An injector circuit fault can result in unrelated DTCs being received from PCM. If engine idles rough or
Continuous Memory DTCs are present, turn ignition switch to ON position. Using scan tool, select INJxF PIDs
from PID/DATA MONITOR & RECORD menu. There is one INJxF PID available for each engine cylinder
and the "x" indicates the appropriate injector number (1-10). If any PID value indicates YES, an injector fault
exists. Turn ignition switch to OFF position and disregard any DTCs that are present at this time. On CNG
models, go to TEST HA, step 60) under SYSTEM TESTS. On all others, go to TEST H, step 56) under
SYSTEM TESTS. If all PID values indicate NO, service DTCs that are present in the following order: KOEO
DTCs, KOER DTCs and then continuous memory DTCs. See DIAGNOSTIC TROUBLE CODE
DEFINITIONS. After test is complete, cycle ignition switch before performing other self-tests or driving
vehicle.
2003 Ford Pickup F150
2003 ENGINE PERFORMANCE Self-Diagnostics - CNG, Flex-Fuel & Gasoline