The Fuel Pump Controllers are different on the NA VS the TT.. The ECU controls the Fuel Pump Controller by hardware. And the ECU Fuel Pump Controller Hardware Outputs are Different NA VS TT.. It's my Understanding.... ( I've never done it yet .. but I will ) That a NA ECU will run a native TT Chasis if the ECU PROM is a TT Prom( It is in your case ).. The side effect will be the TT Fuel pump will NOT be three speed anymore.. it will be a Two Speed, and will go to the High Speed earlier than it should.. I do not see that as a problem, but it's up to you to determine this.. I'd toss it in and run it till you get your ECU Fixed.. Cj
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