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.
CSV | Negative terminal |
Point A Cold Start Valve Connector, Component Side | Point B Vehicle Battery |
|---|---|
VPWR | Positive terminal |
• Remove the jumper wires.
Does the pressure in the cold start fuel line decrease after the jumper wires are connected and does the pressure increase after the jumper wires are removed.
Yes | No |
|---|---|
GO to AB22 . | INSTALL a new Cold Start valve. Clear the PCM DTCs. REPEAT the self-test. |
AB22 CHECK THE COLD START FUEL PUMP
Note: Disconnect the jumper wires at the first sign of fuel entering the approved gasoline fuel container.
• Cold Start Fuel Pump connector disconnected.
• Securely connect an approved gasoline fuel hose (obtained locally) to the cold start fuel pump outlet port that is long enough to route to an approved gasoline fuel container.
• Securely route the approved gasoline fuel hose to an approved gasoline fuel container away from any heat sources or any other ignition sources.
• Connect a 5 amp fused jumper wire between the following:
Point A Cold Start Fuel Pump Connector, Component Side | Point B Vehicle Battery |
|---|---|
CSM - Pin 2 | Positive terminal |
• Connect a 5 amp fused jumper wire between the following:
Point A Cold Start Fuel Pump Connector, Component Side | Point B Vehicle Battery |
|---|---|
GND - Pin 1 | Negative terminal |
• Verify fuel is flowing into the approved gasoline fuel container.
• Remove the jumper wires.
Does fuel flow from the cold start fuel pump when the jumper wires are connected?
Yes | No |
|---|---|
For symptoms without DTCs, RETURN to Section 3 , Symptom Charts for further direction. For all others, GO to AB23 . | INSTALL a new Cold Start Fuel Pump. Clear the PCM 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.