Testing Throttle Sensor - Mazda 1983 RX7 Service Manual

Fig. 2:

Testing Throttle Sensor

4) Start engine and run at 3000 RPM. Quickly decelerate
engine. Current should flow to both terminals simultaneously when
engine speed is 1000-1200 RPM.
5) If current does not flow to both terminals at the same
time, remove cap from throttle sensor adjusting screw and adjust
throttle sensor.
6) Adjust timing of current flow to voltmeter "A" in Fig. 2
by turning throttle sensor adjusting screw.
7) Turning screw in causes current to flow to Light
Green/Yellow wire at lower engine speed. After adjustment, install
cap on throttle sensor adjusting screw and retest throttle sensor.
SHUTTER SOLENOID VALVE
1) Disconnect vacuum sensing tubes from shutter solenoid
valve (Yellow color dot). Blow through solenoid valve through vacuum
hose "B" shown in Fig. 3; air should go through valve and escape at
front port.
2) Disconnect electrical connector and apply battery power
to terminals on solenoid valve. Blow through hose again; air should
escape through air filter at rear of solenoid valve. Replace valve if
it does not respond as outlined.
DECELERATION CONTROL SYSTEM
Article Text (p. 3)
1983 Mazda RX7
For www.iluvmyrx7.com
Copyright © 1998 Mitchell Repair Information Company, LLC
Sunday, August 26, 2001 04:58PM