The 1947 - Present Chevrolet & GMC Truck Message Board Network

The 1947 - Present Chevrolet & GMC Truck Message Board Network (https://67-72chevytrucks.com/vboard/index.php)

- LSx Swaps (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=206)

- - Need some dbw help (https://67-72chevytrucks.com/vboard/showthread.php?t=792601)

michael bustamante

08-28-2019 09:26 PM

Need some dbw help

So my doner is an 03 Yukon. 2wd
Got the truck running finally,!! But my dbw isint responsive at all. Anyone got a dbw diagram I can follow. I did all the harness myself but I mustve missed missed something

ls1nova71

08-28-2019 09:42 PM

Re: Need some dbw help

There's a pink ignition wire that goes to the TAC module, make sure it has power. It's easy to miss being all by its self.

michael bustamante

08-29-2019 08:39 PM

Re: Need some dbw help

Ok I'll check that now. Thank you!

Wildkarde

08-29-2019 09:05 PM

Re: Need some dbw help

Check lt1swap.com for full schematics on the dbw system.

michael bustamante

08-31-2019 02:29 PM

Re: Need some dbw help

Ok I found it and it sure enough had a bad connection. Soon as I fixed I heard the throttle body engage. Thanks k you!

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