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89 Formula Cruise Control w/E40 ECM

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Old 09-08-2016, 10:30 AM
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Car: '89 Formula
Engine: LS2
Transmission: 4L65E
Axle/Gears: MW 3.42 12 Bolt
89 Formula Cruise Control w/E40 ECM

I'm looking for some logic info on cruise control stalk (aka, Multi Function Lever).

4 wires:
Pnk/Blk-Blu is the 12V ign in.
Grey? - on/off? If so, I will be using a separate ON/OFF, so I will not be using.

Dk Blue?
Yellow?

Which one is Set/Coast?
Which one is Resume/Accel?


Thanks for your help.
Brian
Attached Thumbnails 89 Formula Cruise Control w/E40 ECM-fig45_1989_body_wiring_continued.gif  
Old 09-08-2016, 02:39 PM
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Re: 89 Formula Cruise Control w/E40 ECM

http://ls1tech.com/forums/conversion...l#&gid=1&pid=1

1st post has the info you need

great thread in general though!
Old 09-08-2016, 03:12 PM
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Re: 89 Formula Cruise Control w/E40 ECM

Thanks Jaysz28,
Informative, but not definitive on the wires.

Originally Posted by Pocket
Its 4 wires, colors change with the vehicle
Old 09-08-2016, 05:48 PM
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Car: '86 Z28
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Re: 89 Formula Cruise Control w/E40 ECM

Found on Google Images:
Green - 12V Switched Power
Yellow - Res/Acc
Blue - Cruise On/Off
Red - Set/Coast

You seem to have two different from that scheme though...

Cheers,
M
Old 09-08-2016, 05:58 PM
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Re: 89 Formula Cruise Control w/E40 ECM

This thread has some good stuff in it you might be able to crossreference: https://www.thirdgen.org/forums/ltx-...e-ltx-lsx.html

M
Old 09-08-2016, 06:38 PM
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Car: 89RS vert
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Re: 89 Formula Cruise Control w/E40 ECM

Early models, least on my 84.You trying to incorporate this into your aftermarket CC.

From DD, but it didn't really help %100.
Old 09-08-2016, 06:57 PM
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Re: 89 Formula Cruise Control w/E40 ECM

Well, almost every bit of info uses the Drk Blue as Set/Coast. That leaves yellow as Resume/ Accel. Thanks guys.

I'm using the CANBUS! I am putting the PIM module between the TCM and the ALDL for the CAN circuit. I'm using a separate on/off switch, but using the stalk for input signals.
Old 09-08-2016, 07:02 PM
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Re: 89 Formula Cruise Control w/E40 ECM

Damn, over my head.
I ended up putting the DD switch in the GM stalk.Required taking both apart, but it works great & looks OE.I tried using the DD schematic, but all I had was set/on/off.No resume or decal & no wipers to top it off if I stuck w/ the DD stalk.
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