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First check your fuel pressure with a fuel pressure gage. If it is good your pump is good. If you have low pressure it could be a bad pump, dirty fuel filter, or clogged fuel line. If you have no pressure then check to make sure the fuel pump is getting power (12 volts) and that is properly grounded. If it is then either the pump is bad or the fuel filter is completely blocked. But first you may want to check to make sure you have gas in your fuel tank.

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Q: How do you check fuel pump in the Lexus 1993 gs 300?
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