RX7 2RTR- 1308cc 1.3L Turbo FI (1989)
Fuel Pump Relay: Testing and Inspection
Relay testing is necessary only if the fuel pump does not run when the engine is cranking or running. Perform tests in the order listed.
Fuel Pump Relay (Circuit Open Relay)
QUICK TEST
1.
Remove steering column cover and, using a jumper wire, apply 12 volts to the back off terminal "STA" and terminal "B" of the relay harness
connector, with the ignition "OFF" and relay connected.
^
Fuel pump should operate.
2.
Remove jumper wire, turn ignition "ON" and ground the back of terminal "Fc" of the relay harness connector, with the relay connected.
^
Fuel pump should operate.
If pump operates as described in steps #1 and #2 of this test, relay is OK.
If pump does not operate in BOTH steps #1 and #2 of the quick test, continue testing.
TEST 1 - RELAY SWITCHING FUNCTION CHECK
Relay And Resistance Check
1.
Disconnect relay from its harness connector.
2.
Apply 12 volts and ground to the relay terminals listed below and check for the correct result.
12V/Grnd - CORRECT RESULT
"STA"/"E1"
-
Energizes relay, connects terminals "B" and "Fp" (continuity).
"B"/"Fc" -
Energizes relay, 12 volts becomes available at terminal Fp.
If results are not correct as described, replace relay.