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hooking up

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Old 03-08-2014, 08:49 AM
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Default hooking up

I had my harness cut and flashed by a shop and all it does is fire up and die so do I have something hooked up wrong. It's. 01 6.0 from 2500hd
On my ecu I have:
Large red
Green
Green/white
Orange
Brown/white
White
Blue
Purple

What goes where.
Old 03-08-2014, 10:54 AM
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It could be a lot of things but I would check where those wires you listed goto. Take a look at where they are pinned on the pcm and see what they are supposed to goto from the info on the following site:

http://www.lt1swap.com/wiringharness.htm

Based on the little info I have, it could either be that the fuel relay circuit is not hot in run or the VATS have not been disabled on the PCM.
Old 03-08-2014, 02:58 PM
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I votes VATS not removed
Old 03-08-2014, 05:25 PM
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Originally Posted by mountainman
I votes VATS not removed
Ill second that if its just running for a second or so and it shuts off like someone turned the key off.
Old 03-08-2014, 05:37 PM
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+3 on the VATS... seem the wiring could be ok if it does fire up for a second or two.. then shuts down.. have that guy check the tune..
Old 03-08-2014, 06:51 PM
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Another vote for VATS not being removed.



Originally Posted by goneriding
I had my harness cut and flashed by a shop and all it does is fire up and die so do I have something hooked up wrong. It's. 01 6.0 from 2500hd

On my ecu I have:

***Assuming these are your loose wires***

Large red------------------Battery
Green---------------------- Serial data OBD2 maybe
Green/white---------------- Could be VSS
Orange--------------------- 12v+ hot all time (this should be to your fuse panel not a loose wire
Brown/white---------------- I think check engine light wire is brwn/wht not 100%
White---------------------- Tach
Blue-----------------------???
Purple --------------------Brake switch

What goes where.



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