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VSS 4l80e holley terminator

Wonton_yota

Wonton_yota

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Joined
Jul 27, 2022
Member Number
5389
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8
So I have my Toyota with an LS and a 4l80e to a 203/205. Wired with Holley Terminator max which controls my transmission as well. My trans doesn’t have a vss sensor since it’s a late model 4l80e, which ran vss output off the tcase. My question is what can I do to run a vss so that my trans shifts like it should in 4wd?? I was told if I ran it off my tcase, it would not detect correctly when I am in Low range and not shift… I really don’t want to take my transmission apart and install a tone ring in it but looks like I might have to but then again what about when I’m in 4wd? Any recommendations on what have people done before? I’m sure I’m not the only who’s ran into this issue before. TIA!
 
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total newb said:
Doesnt have a vss in which possition?
Theres 1 or 2 on the trans body and one on the tcase (4wd) or output shaft (2wd)
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So the trans has a turbine speed sensor and the other port in the rear has a plug but no sensor. I could run a 40 pulse sensor on the 205 speed O cable port but my concern is when I am in low range it’s not going to sense the correct speed
 
total newb said:
So the trans has all the plugs its supposed to and the controller is tuned to that particular trans.

Then all you need is the vss at the 205.
Click to expand...
Okay but when I’m in 4low will it sense it and allow it to shift properly?
 
You can add a second VSS to a 4x4 4l80e, but you need to disassemble the trans and press a tone ring on the output shaft. I did this for my build. Shifts fine in low and double low without the ECU knowing it is in 4 low. Or swap in a 2wd trans with the VSS already there....
 
Mattygwheeler said:
You can add a second VSS to a 4x4 4l80e, but you need to disassemble the trans and press a tone ring on the output shaft. I did this for my build. Shifts fine in low and double low without the ECU knowing it is in 4 low. Or swap in a 2wd trans with the VSS already there....
Click to expand...
This is the answer I was looking for. Someone who has been there already. Thank you. I will disassemble my trans and add a tone ring in it. Sucks it was just rebuilt but it’s a lesson learned. Hopefully it will help someone in the future as well.
 
Might give AA a call. I’m running an X max and used this setup. Came with the tone ring and sensor. Computer shifts the trans in H or L. Admittedly, I think it shifts a little too fast at WOT in low. I did increase the 1-2 shift point some and it helped. Could probably increase it more but works fine in normal scenarios. Hope it helps.

advanceadapters.com

4L80E 2.75" TO ATLAS 2SP ADAPTER KIT

4L80E TO ATLAS 2 SPEED ADAPTER KIT
advanceadapters.com advanceadapters.com
 
Running a speed sensor in the transfer case of the 205 instead of in the transmission would make it shift funny is what I’ve read. Due to the gear reduction when in low range. Is this true? Anyone have success running it like that? Factory ran it on the tcase..
 
Factory ECU has 2 tables depending if it's in low or high
 
Bebop said:
Factory ECU has 2 tables depending if it's in low or high
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Hi low switch, plus tow haul switch, at least 3 shift maps to tune.
Wonton_yota said:
This is the answer I was looking for. Someone who has been there already. Thank you. I will disassemble my trans and add a tone ring in it. Sucks it was just rebuilt but it’s a lesson learned. Hopefully it will help someone in the future as well.
Click to expand...
This is a far better option versus a requirement to run a VSS equipped tcase, or using Novak/AA parts. You should be able to write 2 or more shift maps to work with your tcase setup. Half the fun is tuning, I recommend HP tuners.

edit, I see you are running Holley, you should be able to write maps with their software.
 
Who's talking about engine tuning :confused:
 
Mattygwheeler said:
Fixed my question...
Click to expand...
And I already answered:
irate4x4.com

VSS 4l80e holley terminator

So I have my Toyota with an LS and a 4l80e to a 203/205. Wired with Holley Terminator max which controls my transmission as well. My trans doesn’t have a vss sensor since it’s a late model 4l80e, which ran vss output off the tcase. My question is what can I do to run a vss so that my trans...
irate4x4.com irate4x4.com
 
Bebop said:
And I already answered:
irate4x4.com

VSS 4l80e holley terminator

So I have my Toyota with an LS and a 4l80e to a 203/205. Wired with Holley Terminator max which controls my transmission as well. My trans doesn’t have a vss sensor since it’s a late model 4l80e, which ran vss output off the tcase. My question is what can I do to run a vss so that my trans...
irate4x4.com irate4x4.com
Click to expand...
Thanks for being clear...
 
I'm gonna put both posts back to back all on one sentence :

"Factory ECU has 2 tables depending if it's in low or high. TermX doesn't have a provision for this."

Clearer ?
 
Bebop said:
I'm gonna put both posts back to back all on one sentence :

"Factory ECU has 2 tables depending if it's in low or high. TermX doesn't have a provision for this."

Clearer ?
Click to expand...
Interesting that the factory ECU has more tunability vs. the holley gear...No real reason to use holley IMO
 
Mattygwheeler said:
Interesting that the factory ECU has more tunability vs. the holley gear...No real reason to use holley IMO
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Let me know you don't know what you're talking about without letting me know you don't know what you're talking about :laughing:
 
Bebop said:
Let me know you don't know what you're talking about without letting me know you don't know what you're talking about :laughing:
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Since you fagged up this thread....I have a 8 inch penis, now you go......:lmao:
 
I have a TermX, HP tuners and I know how to use both ? :confused:
 
Bebop said:
I have a TermX, HP tuners and I know how to use both ? :confused:
Click to expand...
That is impressive, the tech you've posted here will be immortalized on this forum for generations, thank you for your service!:usa::usa:
 
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