NOTES
• Do not install sensors that have been dropped or impacted by other components. The sensing element may be damaged.
• Replacement sensor assemblies have threads coated with anti-seize lubricant and a new gasket.
• If HO2 sensor will be reused, replace the gasket. Use highquality professional grade sidecutters for gasket removal.
• If HO2 sensor will be reused, apply a thin coat of ANTISEIZE LUBRICANT to threads of each sensor prior to installation. Do not use any other grease or sealant product on sensor threads.
• The electrical connector must be clean and free of any dielectric grease.
1. If reusing HO2 sensor:
a. Remove used seal. Install a new one.
b. Apply a light coating of ANTI-SEIZE LUBRICANT to threads.
2. Using OXYGEN SENSOR WRENCH (Part No. HD-50017), install oxygen sensor. Tighten to 14 ft-lbs (19 Nm).
3. See Figure 4-36. Route harness along lower frame and above the rear engine mount. Secure in harness retainer (5).
NOTE
Verify connector halves are clean and free of grease or other contaminants. NEVER apply dielectric grease, cleaning agents or any other lubricants, sealants or fluids to HO2 sensor connectors. Any such application will result in corrupted signals and sensor failure.
4. Connect sensor connector (1 or 2). Secure sensor harnesses with new cable straps to rear frame down tube (3) and brake hose (4).
5. Install main fuse. See 7.3 SYSTEM FUSES AND RELAYS.
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