QT2 THE ENGINE RUNS ROUGH AT IDLE WITH KOER OR CONTINUOUS MEMORY DTCs: CHECK THE INJECTOR FAULT (INJxF) PID(s)

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2005 Mercury Sable, 2005 Mercury Mountaineer, 2005 Mercury Monterey, 2005 Mercury Montego, and 2005 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: An injector circuit fault could result in unrelated DTCs being received from the PCM.

KOEO.
Access the INJxF PIDs (the "x" indicates the injector number). There will be one INJxF PID for each engine cylinder.

Do any of the INJxF PIDs indicate a fault (or Yes)?

Yes	No
An injector circuit fault exists. KEY OFF. Disregard the DTCs.	No fault detected by injector fault PIDs. KEY OFF. GO to Quick Test QT1 and follow the YES Action to Take for all others.
Ford GT: GO to L: Dual-Injection Fuel Delivery System STEP HL3.
All others: GO to H: Fuel Control STEP H34.