Hello, I’m in need of you guys help my engine bay recently caught on fire i have been able to get all the sensors and plastic covers hoses , unfortunately I need HUGE help with finding another engine wire harness !!! Does anyone know where I can buy or get a new one if so what n where

 

A junkyard or local partout/totalled car would be your best bet.

I see car-part shows a handful of junkyards listing 2004 monte 3.8 wiring harnesses, one is even noted as SC. Might be worth calling to see what theyd charge to pull + ship if they aren't within a few hours of you.

You may also be able to consider using a 3.8 NA wire harness. They make a "l67 swap" wire harness to address the two common wire differences between NA and SC if those are still the only differences on a 04.