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B2500, B3000 & B4000

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1998 Mazda Protege, 1998 Mazda Millenia, 1998 Mazda MPV, 1998 Mazda B4000, and 1998 Mazda B3000. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect negative battery cable. If necessary, remove snow/ice shield. Remove air intake tube between air cleaner and throttle body. Remove fuel filler cap to release fuel tank pressure. Connect Fuel Pressure Gauge (49-UN01-010) to fuel pressure relief valve (Schrader valve) on fuel rail.
  2. As an alternate method, disconnect Inertia Fuel Shutoff (IFS) switch connector behind right side of instrument panel, below glove box. Start engine and operate until it stalls.
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