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Old 04-11-2026, 03:32 AM   #13
SnoZi
 
Drives: Camaro 2.0T 2018
Join Date: Mar 2026
Location: Belgium
Posts: 7
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
SnoZi is offline   Reply With Quote