Fuel System Pressure Release: B4000
WARNING: This page is about a different car, the 1995 Mazda B4000, 1995 Mazda B3000, and 1995 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect negative battery cable. If necessary, remove snow/ice shield. Remove air intake tube between air cleaner and throttle body. On all models, 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 supply manifold, near fuel pressure regulator. See Figure .
- As an alternate method, disconnect inertia switch connector behind right side of instrument panel, under radio. Start engine and operate until it stalls.