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You should here the pump run for a few seconds if you just turn on the key then iT will stop. Then the pump will fire up again when you start it. ON A 1992 THE RELAY WILL ACTIVATE THE PUMP FOR 1.5 TO 2 SECOND IN THE RUN POSITION WITH THE CAR NOT RUNNING.

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Q: Is the fuel pump on a 90 Pontiac lemans supposed to come on when the key is on?
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