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There is a couple of components that need to be checked for Voltage & Output
Fuel Pump RelayMain RelayECM
Check for Voltage on both relays with key On & offCheck for signal from ECM (#16) to Relay to verify that the ECM is turning on the Relay
That is new information that you didn't supply..........
What were the checks, readings, voltage etc.??There is 2 things that work the Fuel Pump..Voltage & Ground