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Home >> Mazda >> 1993 >> 626 DX, Standard >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Fuel System >> Fuel System Pressure Release >> Navajo
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Fuel System Pressure Release: Navajo

  1. Disconnect negative battery cable. 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 supply manifold, near fuel pressure regulator. See Figure .
  2. As an alternate method, disconnect inertia switch connector behind instrument panel, under radio. Start engine and operate until it stalls.
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