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1975 Datsun 280z FSM - Spooled up Racing

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Engine Fuel<br />

•0+ (J3!5<br />

EF408<br />

Fig. EF-78 Checking main relay (2)<br />

3. If test results (steps 1 and 2<br />

above) are not satisfactory, relay is<br />

faulty.<br />

7-2. Fuel pump relay check<br />

1. Make sure continuity exists between<br />

terminals (sscj) and (ssj), and<br />

between (iia) and (§§).<br />

EF409<br />

Fig. EF-79 Checking fuel pump relay (1)<br />

2. Connect<br />

terminal (§£3)<br />

&). "Clicks"<br />

12-volt dc to positive<br />

and negative terminal<br />

should be heard and<br />

-MAr<br />

continuity should exist betwen terminals<br />

(glv) and(88cl).<br />

± i—_>><br />

—1^<br />

—o(88d)<br />

I—o+(86a)<br />

-i-o(88y;<br />

—°-C§)<br />

Notes:<br />

a. Before applying test voltage to relay,<br />

connect a fuse in series with<br />

lead wire to prevent damage to the<br />

circuit.<br />

b. If available, use a 7-volt dc in place<br />

of 12-volt to test relay operation.<br />

3. Connect 12-volt dc to positive<br />

terminal @ and negative terminal<br />

(86a). No "clicks" should be heard.<br />

EF410<br />

Fig. EF-80 Checking fuel pump relay (2)<br />

EF-55

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