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Discussion Starter #1
Echo 2001 automatic, engine block fuse melts when the ignition key is turned on.Have disconnected ECU and most sensors that is feed by the yellow/black wire which runs from the EFI relay with out success.Anyone has an idea or has an original wiring diagram for this model.Thanks
 

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2005 Corolla
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unplug your oxygen sensors, i have seen them short out.
 

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yes the ox sensor have been disconnected plus crank can sensors,iac,tps,transmission selenoids,etc.. will have to strip the wiring harness to find a ground wire. thanks for your input. Normand
 
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