Sending Unit Test - Acura NSX 1997 Service Manual

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Sending Unit Test

Do not smoke while working on the fuel
system. Keep open flame away from work area.
1. Remove the rear bulkhead panel behind the driver's
seat, then remove the access panel.
2. With the ignition switch OFF, disconnect the 3P con-
nector from the fuel gauge sending unit.
3. Remove the five nuts, then take the fuel gauge send-
ing unit assembly out of the fuel tank.
Table of Contents
FUEL GAUGE SENDING
UNIT ASSEMBLY
4. Measure the resistance between the A and B termi-
nals by moving the float to the heights listed for E
(EMPTY), 1/2 (HALF FULL) and F (FULL).
Float Position E
Resistance 105-110
Distance from float to tank bottom
E
1.16 in
5.55 in
(29.5 mm) (141 mm)
5. If unable to obtain the above readings, replace the
fuel gauge sending unit.
1/2 F
25.5-39.5
2-5
(Bottom of the fuel tank)
1/2 F
10.4 in
(263 mm)