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Q: fuel pump on 1994 BMW 740iL

i replaced a fuel pump with a after market one and i still dont here the fuel pump running i checked the fuses and relays but i dont know how you would check a relay to see if its bad i undid a fuel line and turned the key over but no gas shots out of it so i think the fuelpump still isnt getting power how would i checka relay
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to check the relay you must turn the key over and fart, if you smell poop your relay is no good
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