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.
( + ) INJ Connector, Harness Side | ( - ) |
|---|---|
INJ | Ground |
Is any voltage present?
Yes | No |
|---|---|
REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. | GO to KG7 . |
KG7 CHECK THE RESISTANCE OF THE FUEL INJECTOR
• Ignition OFF.
• Measure the resistance between:
( + ) INJ Connector, Component Side | ( - ) INJ Connector, Component Side |
|---|---|
VPWR | INJ |
Is the resistance between 11 - 18 ohms?
Yes | No |
|---|---|
GO to KG8 . | INSTALL a new fuel injector. REFER to the Workshop Manual Section 303-04, Fuel Charging and Controls. RESET the keep alive memory (KAM). REFER to Section 2, Resetting The Keep Alive Memory (KAM). REPEAT the self-test. |
KG8 CHECK THE FUNCTIONALITY OF THE INJ CIRCUIT
• PCM connector connected.
• Ignition ON, engine OFF.
• Connect a non-powered test lamp between:
Point A INJ Connector, Harness Side | Point B INJ Connector, Harness Side |
|---|---|
VPWR | INJ |
• Ignition ON, engine running.
Is the test lamp blinking?
Yes | No |
|---|---|
GO to KG9 . | GO to KG10 . |
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.