TCU? Cruise Control?
Thread Starter
Staging Lane
Joined: May 2011
Posts: 72
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TCU? Cruise Control? I'm having an EROD LS3 & 4L70e swapped into my '87 Corvette. I appologize for not starting a swap thread yet...maybe later today. In the mean time there are two things I could use some help with:
We need to buy a TCU soon: I'm leaning toward the FAST EZ TCU & would appreciated your comments: Any experience with that system?
Longer term, I'd like cruise control but it's more or less de-programmed from the EROD ECM. If anyone knows how to make that work please speak up. Alternatively, does anyone have any experience with the Dakota Digital CRS-3000?
Thanks,
Wayne
We need to buy a TCU soon: I'm leaning toward the FAST EZ TCU & would appreciated your comments: Any experience with that system?
Longer term, I'd like cruise control but it's more or less de-programmed from the EROD ECM. If anyone knows how to make that work please speak up. Alternatively, does anyone have any experience with the Dakota Digital CRS-3000?
Thanks,
Wayne
TECH Resident
Joined: Jun 2004
Posts: 841
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From: Tampa, FL
Read through these articles?
http://www.gmperformanceparts.com/_r...nan85Part1.pdf
http://www.gmperformanceparts.com/_r...nan85Part2.pdf
http://www.gmperformanceparts.com/_r...nan85Part1.pdf
http://www.gmperformanceparts.com/_r...nan85Part2.pdf
Teching In
Joined: Nov 2011
Posts: 17
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I bought the cruise control from adam @ spankysrodshop.net and it worked great with my GMPP LS3 system. Also, I wish I had waited and bought the TCI TCU from him as well because he said he makes the TCU harness plug directly into the interface plug by the GMPP harness fuse box. I had alot of headaches searching for cruise control before I found them. Hope this helps!
Thread Starter
Staging Lane
Joined: May 2011
Posts: 72
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The transmission and engine control functions were seperated a while ago. The newer (4L80e & up) transmissions have the TCU built in. There is no TCU in the EROD ECM so a seperate TCU is needed for the 4LXXe series of transmissions.
LS engines used to use a TAC module to implement cruise. Eventually this functionality got integrated into the ECM & fly-by-wire pedal. It appears that, since the EROD is marketed toward older hot rods that may never have had cruise control, the cruise functionality has been disabled. We've tried to find out if it's possible to enable/reprogram but haven't found anyone who knows.
Thread Starter
Staging Lane
Joined: May 2011
Posts: 72
Likes: 0
I bought the cruise control from adam @ spankysrodshop.net and it worked great with my GMPP LS3 system. Also, I wish I had waited and bought the TCI TCU from him as well because he said he makes the TCU harness plug directly into the interface plug by the GMPP harness fuse box. I had alot of headaches searching for cruise control before I found them. Hope this helps!
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The benefits of the EZ-TCU are that it's very simple to program as well as monitor the transmission functions with the handheld controller. You don't have to worry about a laptop or software. If you decide you want to have the transmission shift at 6500 instead of 6000, then it just takes a few seconds to make the change.
I've got a couple of tips for the install. Just let me know when you're ready.
I've got a couple of tips for the install. Just let me know when you're ready.
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Staging Lane
Joined: May 2011
Posts: 72
Likes: 0
I drove back & forth from LA to North Carolina a few times without cruise when I was in college and my right foot got real sore. I could live without it in my swap, but will be glad to have it on a road trip.
UPS tracking say's it's out for delivery today.
UPS tracking say's it's out for delivery today.
