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Discussion Starter · #1 ·
i made a huge mistake and bought one of those resistor type performance "chips" off ebay. HORRIBLE decision. anyway, it fried my ecu. i found a replacement on ebay. Can i just plug it up like my old one? or is there some kind of reprogramming that needs to be done by the dealership? any help would be greatly appreciated. i have been without my truck for a week now. i need it fixed asap
 

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it does have to be sent to toyota to have your vin and options programed to the ecm, you wanna make sure that the ecu is the same as yours also
 

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In my experience the ECM has to be programmed at the dealership and it has to be a new part. A junk yard ECM probably can not be reprogrammed to another car.
 
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