Fuel Pump Inspection - Mazda 121 Workshop Manual

FUEL SYSTEiI
F
lnstallation Note
1. Push the ends of the main fuel hose, fuel return hose, and
evaporative hoses onto the fuel tank fittings ai least 25mm
(r.0 in).
2. Push thefuelfiller hose onto the tueltank pipeand tiller pipe
al least 35mm (1.4 In).
FUEL PUMP
Inspection
ltlaximum pressure
Warnlng
. Setore performing the lollowlng operalion, release
the tuel prcssu|e lrom the fuel system to r€duce the
po$lbllily ol Inlury or lire. (Reter lo page F-{8.}
. When inspecting luel system palts, keep sparks,
cigarettes, and open tlames away from the fuel,
'1. Disconnect the negative baftery cable.
2. Connect a fuel pressure gauge to the luel main pipe and
plug the outlet of the fuel pressure gauge as shown. (lnstall
clamos as shown.)
3. Connect the negative battery cable.
4. Connect diagnosis connector terminals F/P and GND with
a lumper wre.
5. Turn the ignition switch ON tor l0 sec. to operate the luel
pump and measure the fuel pressure.
Fuel pressure:
491-658 kPa (5.0-6.5 kg/cm', 7l.l-92.4 p6i)
6. Turn he ignition switch OFF and disconnect ttte jumper wire.
7. lf not as specified, replace the fuel pump.
Conlinully
1. Remove the rear seal cushion.
2. Disconnect the fuel oumD connector.
3. Check lor continuity between the terminals @ and @ of
the connector at the fuel pump shown in the figure.
4. lf there is no continuity, replace the fuel pump.
(Refer to page F-92.)
FUEL PUMP COVER
REAN SEAT CIJSHION
22--.30 12.2-3, 1, 1G-2'
Nfl (Gks, n.D) |
CONNECTOB
F-91