Honda Acura NSX 1991 Service Manual page 278

Fuel Supply System
-Fuel Pump
Testing
Do not smoke during the test. Keep open
flame away from your work area.
1.
With the ignition switch OFF, disconnect the main
relay connector.
2. Connect a jumper wire between the BLK/YEL wire
Jumper wire
3. Relieve fuel pressure as described on page 1 I-87
then tighten the service bolt.
4. Disconnect the fuel return hose from the regulator.
5. Turn the ignition switch' ON for 10 seconds and
measure the amount of fuel flow.
Amount should be:
333 cm3 (I 1.2 02) min. in 10 seconds at 12 V
l
lf fuel flow is less than 333 cm3 (Il.2
there is no fuel flow, check for:
Clogged fuel filter.
l
. Clogged fuel line.
.
Pressure regulator failure (page 1 I-95).
1 I-102
system. Keep open flames away from your work area.
Remove the fuel tank (page 1 l-108).
1 .
2. Disconnect the connector from the fuel pump.
3. Remove the fuel pump mounting nuts.
4. Remove the fuel pump from the fuel tank.
6 Nom IO.6 k
4 lb+)
REGULATOF
or
Do not smoke while working on fuel
28 N*md2.8 kg-m, 20 lb-ft)
FUEL PUMP
BRACKET