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Home >> Mazda >> 1987 >> 323 LX, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Fuel Pump - Electric >> Testing >> Fuel Pump >> Pressure Test (B2200 & B2600)

Pressure Test (B2200 & B2600)

Turn ignition off. Disconnect main fuel hose and connect a fuel pressure gauge to it. Connect "B" and "D" terminals of the fuel pump control unit with a jumper wire. See Fig 1 . Turn igntion switch on and check fuel pressure. Pressure should be 2.8-3.6 psi (.20-.25 kg/cm2 ). If not replace fuel pump.

Fig 1: Testing Fuel Pump Control Unit (B2600)
G50A16816Courtesy of MAZDA MOTORS CORP.