Mazda 626 1989 Workshop Manual page 362

Number: 002/93
Section 3 - FUEL PUMP DIAGNOSTIC PROCEDURES
1. Disconnect negsave terminal and check battery volt­
age. Voltage should be 12.4V or more. Reconnect
terminal.
2. Start engine and run at idle.
3. Disconnect circuit opening relay. Engine will continue
to run until all fuel in the supply line is used.
WARNING: Step 3 is designed to eliminate fuel in the
supply [ne and enable safe installation of
the fuel pressure gauge. Refer to the work­
shop manual for further instructions.
4. Disconnect the negative battery terminal.
5. Install the fuel pressure gauge on the outlet side of
the fuel filter.
6. Short circuit the fuel pump test terminals (yellow 2
pin connector with a jumper wire on the following
vehicles.
1988-89 323
1990-91 929
1989-91 RX-7
7. Short circuit the fuel pump check terminal and the
ground terminal of the diagnostic connector with a
jumper wire on the following vehicles.
1990 - 93 323/Protege
1992-93 929
1990-93 MX-5
8. Turn the ignition switch on and measure the maxi­
mum fuel pressure.Turn the ignition switch off and
remove the jumper wires.
1988-89 323,1990-91 323/Protege, 1990-92 626/MX-6, 1990-91 929, MPV (All)
1992-93 323/Protege, 1992-93 929, 1993 626/MX-6.MX-3 (All), MX-5 (All)
P ag e 11 of 18
Date Issued: 9/16/93
1993 - 626/MX-6
1989-92 MPV
1993 626/MX-6
1992-93 MX-3
1993 RX-7
Year/Model
1989-91 RX-7
1993 RX-7
Revised:
Standard Value (PSI)
49 or Over
52 or Over
56 or Over
53 or Over