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.
Is there a change in the PID reading?
Yes | No |
|---|---|
ISOLATE the concern. REPAIR as necessary. Clear the PCM DTCs. REPEAT the self-test. | GO to HN11 . |
HN11 INTERMITTENT CHECK
Note: This step applies to multiple components, only measure the circuits that apply to the vehicle and component being diagnosed.
• For TCBY or TCBY2,
• Access the PCM and monitor the TURBO_BP1_STAT (MODE) PID.
• Access the PCM and monitor the TURBO_BP2_STAT (MODE) PID.
• For the turbocharger wastegate regulating valve solenoid,
• Access the PCM and monitor the TWGATE_STAT (MODE) PID.
• For wastegate vacuum sensor,
• Access the PCM and monitor the WGATE_PRES_F (MODE) PID.
• While observing the PID, carry out the following:
◾ lightly tap on the suspect component to simulate road shock ◾ wiggle the suspect component connector
Is there a change in the PID reading?
Yes | No |
|---|---|
INSTALL a new component. REFER to the Workshop Manual Section 303-14, Electronic Engine Controls. Clear the PCM DTCs. REPEAT the self-test. | For DTCs P1011, P1015 or P1016, GO to HN27 . For all others, GO to HN12 . |
HN12 TURBOCHARGER SYSTEM PERFORMANCE CONCERNS
Note: For a performance concern related to a plugged or restricted exhaust, GO to HF8 .
Note: Diagnose circuit concerns prior to range or performance concerns.
Note: Visually inspect the vehicle for aftermarket accessories and performance modifications (exhaust system, turbocharger, performance chip). Refer to Section 1 Engine Control (EC) System, Modifications to OBD Vehicles.
• Ignition OFF.
• Check the air filter element and housing for contamination, blockage or water intrusion.
• Disconnect the air intake and check for restrictions and water intrusion.
• Visually inspect the turbocharger system for:
◾ correct vacuum supply system hose connections and routing ◾ correct vacuum turbocharger wastegate control hose connection and routing ◾ correct pressure turbocharger wastegate control hose connection and routing ◾ correct vacuum turbocharger bypass control hose connection and routing ◾ leaks around tubing and intake manifold ◾ correct electrical connections ◾ damaged or leaking exhaust system ◾ turbocharger oil leaks. Refer to the Workshop Manual Section 303-04, Fuel Charging and
Controls — Turbocharger.
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.