Relief Solenoid Valve Signal Check Test; Testing Relief Solenoid Valve - Mazda 1983 RX7 Service Manual

Fig. 3:

Testing Relief Solenoid Valve

RELIEF SOLENOID VALVE SIGNAL CHECK TEST

1) Warm engine to normal operating temperature. Connect
tachometer to engine. Connect voltmeter to relief solenoid valve
connector terminals.
2) Disconnect connector from throttle sensor and connect a
jumper wire between terminals "A" and "C" of connector. See Fig. 4.
Start engine and increase engine speed.
3) Voltmeter should read near 0V when engine speed is
3600-4400 RPM. Set engine speed at 2000 RPM. Disconnect No. 2 water
temperature switch (located on radiator) electrical connector.
4) Slowly decrease engine speed from 2000 RPM and watch
voltmeter. When engine speed is 1000-1200 RPM, voltmeter should read
near 12V. Decrease engine speed to idle.
5) Remove jumper wire from throttle sensor connector and
reconnect throttle sensor connector. Slowly increase engine speed
from idle (with throttle) and watch voltmeter. The voltmeter should
read 12V at any engine speed.
6) The voltmeter should read near 0V if engine is
accelerated quickly. Disconnect electrical connector from No. 1 water
temperature switch (located behind alternator) and connect a jumper
wire between both terminals of connector.
AIR INJECTION SYSTEM
Article Text (p. 4)
1983 Mazda RX7
For www.iluvmyrx7.com
Copyright © 1998 Mitchell Repair Information Company, LLC
Sunday, August 26, 2001 04:57PM