DW: Heated Oxygen Sensor (HO2S) DW: Introduction — 2016 workshop reference 5072

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.

◾ universal HO2S and mounting surface ◾ downstream HO2S and mounting surface ◾ exhaust system in between the universal HO2S and rear HO2S

• Check the exhaust flange bolts for correct torque.

• Check the rear HO2S for correct torque.

Is a concern present?

Yes	No
For DTCs P013A or P013C, REPAIR as necessary. CARRY OUT the HO2S and Catalyst OBD Monitor Drive Cycle Procedures. REFER to Section 2, On Board Diagnostic (OBD) Drive Cycle. Clear the PCM DTCs. REPEAT the self-test. If DTCs P013A or P013C are retrieved, GO to DW7 . For DTCs P013E or P014A, REPAIR as necessary. CARRY OUT the HO2S and Catalyst OBD Monitor Drive Cycle Procedures. REFER to Section 2, On Board Diagnostic (OBD) Drive Cycle. Clear the PCM DTCs. REPEAT the self-test. For all others, REPAIR as necessary. Clear the PCM DTCs. REPEAT the self-test.	For DTCs P013A or P013C, GO to DW7 . For DTCs P013E or P014A, INSTALL a new HO2S. REFER to the Workshop Manual Section 303-14, Electronic Engine Controls. CARRY OUT the HO2S and Catalyst OBD Monitor Drive Cycle Procedures. REFER to Section 2, On Board Diagnostic (OBD) Drive Cycle. Clear the PCM DTCs. REPEAT the self-test. For all others, GO to DW8 .

Yes

For DTCs P013A or P013C, REPAIR as necessary.

CARRY OUT the HO2S and Catalyst OBD Monitor Drive Cycle Procedures. REFER to Section 2, On Board Diagnostic (OBD) Drive Cycle.

Clear the PCM DTCs. REPEAT the self-test.

If DTCs P013A or P013C are retrieved,

GO to DW7 .

For DTCs P013E or P014A, REPAIR as necessary.

CARRY OUT the HO2S and Catalyst OBD Monitor Drive Cycle Procedures. REFER to Section 2, On Board Diagnostic (OBD) Drive Cycle.

Clear the PCM DTCs. REPEAT the self-test.

For all others, REPAIR as necessary.

Clear the PCM DTCs. REPEAT the self-test.

For DTCs P013A or P013C, GO to DW7 .

For DTCs P013E or P014A, INSTALL a new HO2S. REFER to the Workshop Manual Section 303-14, Electronic Engine Controls.

CARRY OUT the HO2S and Catalyst OBD Monitor Drive Cycle Procedures. REFER to Section 2, On Board Diagnostic (OBD) Drive Cycle.

Clear the PCM DTCs. REPEAT the self-test.

For all others, GO to DW8 .

DW7 CHECK THE CATALIYTIC CONVERTER

Note: Internal damage of a catalytic converter is usually caused by abnormal engine operation upstream of the catalyst. Events that can produce higher than normal temperatures in the catalyst are particularly suspect. For example, misfiring can cause higher than normal catalyst operating temperatures.

• Inspect the catalyst substrate for damage.

Is a concern present?

Yes	No
INSTALL a new monitored catalyst only, for the bank referenced. Do not install a new unmonitored catalyst unless it is repaired as an assembly. REFER to the Workshop Manual Section 309-00, Exhaust System. CARRY OUT the HO2S and Catalyst OBD Monitor Drive Cycle Procedures. REFER to Section 2, On Board Diagnostic (OBD) Drive Cycle.	INSTALL a new HO2S. REFER to the Workshop Manual Section 303-14, Electronic Engine Controls. CARRY OUT the HO2S and Catalyst OBD Monitor Drive Cycle Procedures. REFER to Section 2, On Board Diagnostic (OBD) Drive Cycle. Clear the PCM DTCs. REPEAT the self-test.

Yes

INSTALL a new monitored catalyst only, for the bank referenced. Do not install a new unmonitored catalyst unless it is repaired as an assembly. REFER to the Workshop Manual Section 309-00, Exhaust System.

CARRY OUT the HO2S and Catalyst OBD Monitor Drive Cycle Procedures. REFER to Section 2, On Board Diagnostic (OBD) Drive Cycle.

INSTALL a new HO2S. REFER to the Workshop Manual Section 303-14, Electronic Engine Controls. CARRY OUT the HO2S and Catalyst OBD Monitor Drive Cycle Procedures. REFER to Section 2, On Board Diagnostic (OBD) Drive Cycle.

Clear the PCM DTCs. REPEAT the self-test.

Source reference 5072

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.