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Old 11-16-2019, 11:41 AM   #1
HTX86chevy
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03 Denali DBW question

I pulled a 6.0/4l60e from a Denali that is AWD with red and blue ECU connections. This Denali is DBW.

I swapped the transmission for a 2wd 4l60e
I’m looking for a harness with Red and blue connections for ECU that would be DBW but only finding DBC available.

Am I stuck reworking my own harness?
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Old 11-16-2019, 12:17 PM   #2
ls1nova71
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Re: 03 Denali DBW question

I think you must have the year wrong. The blue and red harnesses stopped in 2002, so it is most likely a 2000-02. They use a different TAC and throttle body than the 03-07. So if you try looking for a harness for a DBW 2002 truck you should find it.
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Old 11-16-2019, 12:36 PM   #3
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Re: 03 Denali DBW question

Heading to the shop later today. I’ll double check the year. Thank you.
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Old 11-16-2019, 04:00 PM   #4
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Re: 03 Denali DBW question

A 2000-2002 will have a 2 plug throttle body and an all plastic TAC, that's the easiest way to tell.
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Old 11-17-2019, 02:50 AM   #5
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Re: 03 Denali DBW question

Turns out it’s a 2001 . Thanks you.
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