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.
DIAGNOSE ignition coil and fuel injection components for the suspect cylinder. REPAIR or INSTALL a new component as necessary. Clear the PCM DTCs. REPEAT the self-test. | INSTALL a new KS. REFER to the Workshop Manual Section 303-14, Electronic Engine Controls. Clear the PCM DTCs. REPEAT the self-test. |
DG7 CHECK THE LEARNED OCTANE ADJUSTMENT
• Access the PCM and monitor the OCTADJ_R_LRND (PER) PID.
Does the OCTADJ_R_LRND PID read between -85% to -100%?
Yes | No |
|---|---|
DRAIN and CLEAN the fuel system, REFILL with correct grade fuel. Clear the PCM DTCs. REPEAT the self-test. | INSTALL a new KS. REFER to the Workshop Manual Section 303- 14, Electronic Engine Controls. CLEAR the DTCs. REPEAT the self-test. |
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.