HX: Evaporative Emission (EVAP) System — 2016 workshop reference 5228

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.

• Install the fuel filler cap or remove the supplemental refueling adaptor once smoke exits the fuel tank filler pipe.

• Continue to apply smoke to the EVAP system for 60 seconds.

• Press and release the remote starter button in intervals of approximately 15 seconds on and 15 seconds off while checking for exiting smoke.

• Use the halogen spotlight along the EVAP system path and look for smoke exiting at the leak.

Is the EVAP leak located?

Yes	No
REPAIR as necessary. CONNECT all the disconnected components. For repair verification, CARRY OUT the Smoke Machine PHASE 1 - Leak Verification Pressure Test. GO to HX46 .	The test passed. CONNECT all the disconnected components. CARRY OUT the Smoke Machine PHASE 1 - Leak Verification Pressure Test. GO to HX46 .

Yes

REPAIR as necessary.

CONNECT all the disconnected components.

For repair verification, CARRY OUT the Smoke Machine PHASE 1 - Leak Verification Pressure Test.

GO to HX46 .

The test passed.

CONNECT all the disconnected components.

CARRY OUT the Smoke Machine PHASE 1 - Leak Verification Pressure Test.

GO to HX46 .

HX46 CARRY OUT THE SMOKE MACHINE PHASE 1 - LEAK VERIFICATION PRESSURE TEST

• Position the control lever located on the Rotunda Smoke Machine, Fuel Evaporative Emission System Tester 218-00001 or equivalent to METER.

• Calibrate the smoke machine flowmeter using the 0.020 (DTC P0456) standard or the 0.040 (DTC P0442) standard as follows:

◾ Insert the air supply hose (transparent hose) nozzle tip into the appropriate EVAP system

standard located on the front of the smoke machine.

◾ Press the remote starter button on the smoke machine. Observe the position of the

flowmeter indicator ball.

◾ Position the flowmeter red pointer flag so that it aligns with the measurement of the

indicator ball.

◾ Release the button and remove the air supply hose nozzle tip from the EVAP system

standard.

• Connect the air supply hose (transparent hose) nozzle tip into the suitable hose adapter.

• Ignition ON, engine OFF.

• Access the PCM and control the EVAPCV (MODE) PID.

• Close the EVAP canister vent valve by commanding the EVAPCV PID to ON (100% duty cycle).

• Access the PCM and control the EVAPCP (PER) PID.

• Open the EVAP purge valve by commanding the EVAPCP PID to 100%.

• Press the remote starter button on the smoke machine. Notice that the ball in the flowmeter is all the way at the top. This indicates the system is being pressurized.

• Continue to press the remote starter button until the ball stops descending. Once the ball stops descending, observe if it is above or below the red pointer flag. If the measurement is below the indicator flag, the system has passed the pressure test. If the measurement is above the indicator flag, the EVAP system has an unacceptable leak.

Does the EVAP system pass the leak verification pressure test?

Yes	No
For DTC P0456, GO to HX47 . For all others, the test passed and no concerns are present. Clear the PCM DTCs. REPEAT the self-test.	GO to HX45 .

Yes

For DTC P0456, GO to HX47 .

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

Clear the PCM DTCs. REPEAT the self-test.

GO to HX45 .

Source reference 5228

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.