Factory-style information for owners and repair work

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Nissan Sentra B18 (2020-2025) Service Manual: Multiport Fuel Injection System or Engine Control System

Multiport Fuel Injection System or Engine Control System

  • Before connecting or disconnecting any harness connector for the multiport fuel injection system or ECM:

    Ignition switch OFF.

    Disconnect negative battery terminal.

    Otherwise, there may be damage to ECM.

  • Before disconnecting pressurized fuel line from fuel pump to injectors, be sure to release fuel pressure.

  • Be careful not to jar components such as ECM and mass air flow sensor.

    Fuel
    Fuel MR20DD Use unleaded regular gasoline with an octane rating of at least 87 AKI (Anti-Knock Index) number (Research octane number 91). CAUTION: Only Nissan Sentra vehicles wi...
    Hoses
    Hoses HOSE REMOVAL AND INSTALLATION To prevent damage to rubber hose, do not pry off rubber hose with tapered tool or screwdriver. To reinstall the rubber hose securely, make su...

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