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Discussion Starter #1
I have error code 43 showing on the dash. I have 12v going to the ecu but my fuel pump won’t run. If I ground the red/blue wire coming out of the relay the pump kicks on. What does the 12v for fuel relay do once it goes into the ecu?
 

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Discussion Starter #2
ive currently cut the feed to the ECU which is the red/blue wire and took the red/blue relay wire right to ground so that i can run my rhino. Still ends up with the code 43 showing and the engine light on but atleast i can drive it. Still not sure what tells the ecu to put the relay to ground. everything else on the unit works so i guess the ECU must be bad?
 
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