Nissan Juke Service and Repair Manual : Three Way Catalyst

If a large amount of unburned fuel flows into the catalyst, the catalyst temperature will be excessively high. To prevent this, follow the instructions.

Use unleaded gasoline only. Leaded gasoline will seriously damage the three way catalyst.

When checking for ignition spark or measuring engine compression, make tests quickly and only when necessary.

Do not run engine when the fuel tank level is low, otherwise the engine may misfire, causing damage to the catalyst.

Do not place the vehicle on flammable material. Keep flammable material off the exhaust pipe and the three way catalyst.

    General Precautions
    Do not operate the engine for an extended period of time without proper exhaust ventilation. Keep the work area well ventilated and free of any inflammable materials. Special care should be tak ...

    Multiport Fuel Injection System or Engine Control System
    Before connecting or disconnecting any harness connector for the multiport fuel injection system or ECM: Turn ignition switch to OFF position. Disconnect negative battery terminal. Otherwise, ...

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