Vehicle applicability: This diagnostic supplement covers multiple Ford vehicles and engines. Follow the application named in the source below. Some references apply to vehicles other than Mustang.
DI: Direct Fuel Injection Fuel Injector
DI: Introduction
DI1 CHECK FOR DTCS
Are DTCs P0201, P0202, P0203, P0204, P0205, or P0206 present?
Yes | No |
|---|---|
GO to DI2 . | For no start, runs rough at idle or misses, GO to DI2 . For all others, RETURN to Section 3 , Symptom Charts for further direction. |
DI2 CHECK THE FUEL INJECTOR PID
• Ignition ON, engine OFF.
• Access the PCM and monitor the INJ_F (MODE) PID.
Does the INJ_F PID indicate a concern?
Yes | No |
|---|---|
GO to DI4 . | GO to DI3 . |
DI3 CARRY OUT THE RELATIVE INJECTOR FLOW TEST
Note: The IDS test referenced in this step may not be available on all vehicles. Proceed to the next step if the IDS test is not available.
• Verify the low pressure fuel system is operating correctly. GO to Pinpoint Test HC and follow the pinpoint test direction.
• Carry out the Relative Injector Flow Test. Refer to the instruction manual provided by the scan tool manufacturer.
Are the results satisfactory?
Yes | No |
|---|---|
The system is operating correctly at this time. RETURN to Section 3 , Symptom Charts for further direction. | GO to DI4 . |
DI4 CHECK THE INJ AND INJRTN CIRCUITS FOR AN OPEN
• Ignition OFF.
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.