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Hi, I am new to the ltr’s and I dont know much about them. But I have figured out that my injector is not getting power when plugged up. It is fine if you test it with a 12v battery. I was thinking the ecm was bad but all the lights still come on, the fuel pump kicks on. Everything works as it should except for the injector.
 

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Best bet is to trace your problem down using the service manual , its fairly simple to follow the steps. Just search up a Ltr 450 owner manual Pdf.
The FI system diagnosis is chapter 4 page 135
 

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I did the diagnostic, it’s showing me a code of “1..12345” “1..12345” I looked the code up in the manual and it’s saying it’s a engine coolant temperature code. I traced the wires back to the ecm and none are loose/broken. I am again clueless.. could anyone point me in the right direction. Oh and why wouldn’t the injector be kicking on if the ect code is thrown?
 
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