MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE

2016 workshop · Powertrain Control-Emissions Diagnosis

HC: Fuel Delivery System HC: Introduction

Powertrain Control-Emissions Diagnosis

Ford gasoline diagnostic supplementReference 5,144 / 6,619HTML edition
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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.

Section 310-01, Fuel Tank and Lines.

GO to HC16 .

For all others, GO to HC16 .

REPAIR the cause of the restriction.

Clear the PCM DTCs. REPEAT the self-test.

HC16 VERIFY THE REPAIR

WARNING: STRICT OBSERVANCE OF POSTED SPEED LIMITS AND ATTENTION TO DRIVING CONDITIONS ARE MANDATORY WHEN CARRYING OUT THE ROAD TEST. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.

Note: For vehicles that do not start, follow the NO answer.

• Ignition ON, engine running.

• Engine at normal operating temperature.

• Monitor the mechanical gauge.

• From a stop, accelerate to 89 km/h (55 mph) at full throttle. Repeat this 3 times.

Is the fuel pressure always greater than 352 kPa (51 psi)?

Yes

No

For DTC P0087, GO to Pinpoint Test HP .

For all others, the test is complete and no concerns are present.

INSTALL a new FP. REFER to the Workshop Manual Section 310-01, Fuel Tank and Lines.

Clear the PCM DTCs. REPEAT the self-test.

HC17 CHECK FOR CORRECT PCM OPERATION

• Disconnect all the PCM connectors.

• Visually inspect for:

◾ pushed out pins ◾ corrosion

• Connect all the PCM connectors and make sure they seat correctly.

• Carry out the PCM self-test.

• Verify the concern is still present.

Is the concern still present?

Yes

No

INSTALL a new PCM. REFER to Section 2, Flash Electrically Erasable Programmable Read Only Memory (EEPROM).

The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.

Source reference 5144

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.