Removal and Installation (Three Way Catalyst): Installation

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.

Installation is in the reverse order of removal.

Tighten air fuel ratio sensor 1 to specification (if removed).

CAUTION:

Do not reuse the gasket.

Do not over tighten air fuel ratio sensor 1. Doing so may cause damage to air fuel ratio sensor 1, resulting in the "MIL" coming on.

Before installing a new air fuel ratio sensor 1, clean exhaust system threads using oxygen sensor thread cleaner and apply anti-seize lubricant.

Oxygen sensor thread cleaner	: -- (J-43897-12)
Oxygen sensor thread cleaner	: -- (J-43897-18)