Mazda 1984 RX7 Spezifikationen PDF herunterladen (Seite 46)

FUEL INJECTION SYSTEM

Article Text (p. 5

1984 Mazda RX

For iluvm

rx7.com

PULSATION DAMPER TEST

Start engine and run at idle. Place finger over pulsation

damper and ensure damper pulsates. If not, replace pulsation damper.

ATMOSPHERIC PRESSURE SENSOR TEST

Turn ignition on. Using a voltmeter connected to the

atmospheric pressure sensor terminal "D", measure voltage. See Fig. 5.

Voltage should be 3.5-4.5 volts at sea level, or 2.5-3.5 volts above

an altitude of 6500 ft. (2000 m).

Fig. 5: Testing Atmospheric Pressure Sensor

PRESSURE REGULATOR CONTROL VALVE TEST

1) Disconnect vacuum hoses from control valve. Blow into

valve port "B" and ensure that air passes out of valve through air

filter port "C". See Fig. 6.

2) Remove connector from control valve and energize control

valve by applying 12 volts to switch terminal. Ground other terminal.

Blow into valve port "B" and ensure that air passes out of valve

through port "C". If not, replace control valve.

Fig. 6: Testing Pressure Regulator Control Valve

INTAKE AIR TEMPERATURE SENSOR TEST

Remove intake air temperature sensor from dynamic chamber.

Using a heat lamp, ohmmeter and thermometer, measure resistance of

sensor at various temperatures. See INTAKE AIR TEMPERATURE SENSOR

RESISTANCE specification table.

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Mazda 1984 RX7 Spezifikationen Seite 46