Mazda MX-6 1998, Workshop Manual

Page: 472 / 1282

FUEL SYSTEM
Caution
•
Connecting the wrong fuel pump relay
socket terminals may possibly cause a
malfunction. Carefully connect the
specified terminals only.
6. Connect fuel pump relay socket terminals 30 and
87 by using a jumper wire.
Caution
•
Before connecting the negative battery
cable be sure all fuel connections, clamps
and fittings are secure. Fuel pump will
operate at full pressure anytime the cable
is connected to the battery. When the
cable makes contact, it is sure to arc and
create a danger of ignition or explosion.
7. Connect the negative battery cable to operate the
fuel pump. Measure the fuel pump maximum
pressure.
Fuel pump maximum pressure
480— 630 kPa {4.8—6.5 kgf/cm2, 69—92 psi}
8. Disconnect the negative battery cable and remove
the jumper wire.
9. If not as specified, carry out the “Fuel Line Hold
Pressure Inspection” .
10. Complete the “AFTER REPAIR PROCEDURE”.
(Refer to 01 -1 4 AFTER REPAIR PROCEDURE.)
Fuel Line Hold Pressure Inspection
Warning
•
Fuel line spills and leaks are dangerous.
Fuel can ignite and cause serious injuries
or death and damage. Always carry out the
following procedure with the engine
stopped.
1. Complete the “BEFORE REPAIR PROCEDURE”.
(Refer to 01-14 BEFORE REPAIR
PROCEDURE.)
2. Disconnect the negative battery cable.
3. Remove the cruise actuator with the harness and
cable connected. [FS]
4. Connect a fuel pressure gauge to the fuel filter
and plug the outlet of the gauge as shown. (Install
clamps as shown.) [FS]
5. Connect a fuel pressure gauge between the fuel
distributors RH and LH as shown. (Install clamps
as shown.) [KL]
FUEL PUMP RELAY
W 6 U 1 1 4 W Q !
0 1 -1 4 -8