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Old 04-11-2026, 08:31 AM   #14
bishopts

 
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Drives: 2017 2ss 6mt
Join Date: Mar 2024
Location: dallas
Posts: 1,485
Quote:
Originally Posted by SnoZi View Post
Hey guys,

So here is a little update.
I had a bunch of poeple to help, some guy with good knowledge ok electric tested my harness and all seems good
So I wen't for the ECU, brought it to a repair guy, He ended up finding (that he said though idk how trusted he can ben tbh) that the coil driver was indeed dead , but he couldn't get the components to repair. So I bought the 12700116 ECU from Amazon and had it cloned.
When I installed it :
Plugged it in
Plugged the battery back
Looked for codes before starting.
And I had a code saying : No communication with the ECM.
When the car battery is on now the ECM relay in the fuse box goes crazy clic clic clic clic.
I thought something was wrong with sole fuse or relay but when I tryed with the old ECU it had no problems (besides the obvious coil driver thing).

So now I have no idea what is wrong, is it the clone that is bad ? Am I that unlucky and I got a defective ECU ? Is there something else to do for the car to accept the new ECU ?
I'm so lost and mad with this whole thing its getting crazy.

Kind regards
You have to program the ecm to the car. Its not something you can just get and plug in.
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