Ford Mustang (1999-2004) Service Manual: Heated Oxygen Sensor (HO2S)

Special Tool(s)

Socket, Exhaust Gas Oxygen Sensor 303-476 (T94P-9472-A)

Material

Item Specification
Penetrating and Lock Lubricant or equivalent E8AZ-19A501- B

Removal and Installation

1. Disconnect the battery ground cable. For additional information, refer to Section.

2. Raise and support the vehicle. For additional information, refer to Section.

3. NOTE: Two heated oxygen sensors (HO2S) are used for the engine control system. They are located in the dual converter Y pipe. The left side (HO2S) is shown, the right side is similar.

Disconnect the HO2S electrical connector.

4. NOTE: If necessary, lubricate the heated oxygen sensors with penetrating and lock lubricant to assist in removal.

Using the special tool, remove the HO2S from the dual converter Y pipe.

Heated Oxygen Sensor (HO2S)

5. To install, reverse the removal procedure.

Heated Oxygen Sensor (HO2S)

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