yellow vss buffer box delete
03-14-2021, 08:21 PM
#1
Member
Thread Starter
yellow vss buffer box delete
So right now I have a SGI-100BT dakota box installed along with the yellow factory buffer box. I want to just delete the factory box. The problem is that there are two signal wires, purple and yellow. I am using the purple wire as my signal wire. What do I do with the yellow wire?
03-14-2021, 08:49 PM
#2
Re: yellow vss buffer box delete
So right now I have a SGI-100BT dakota box installed along with the yellow factory buffer box. I want to just delete the factory box. The problem is that there are two signal wires, purple and yellow. I am using the purple wire as my signal wire. What do I do with the yellow wire?
https://www.thirdgen.org/forums/ltx-...uffer-box.html
03-14-2021, 10:12 PM
#3
COTM Editor
iTrader: (22)
Join Date: Mar 2001
Posts: 9,945
Likes: 0
Received 1,874 Likes
on
1,280 Posts
Car: '89 Firebird
Engine: 7.0L
Transmission: T56
Re: yellow vss buffer box delete
What does a SGI-100BT do? I can look it up but I actually want to hear your answer.
Transmission speed sensor has a 2-wire pair. You need both to operate the speedometer. On my 89 Firebird V6 the purple and yellow were laid in the harness but not used (came from C100 bulkhead on the driver side firewall). Speed sensor was actually a different wire pair from the passenger side kick panel I think. You might want to confirm that you don't have something goofy like that going on in your car.
Transmission speed sensor has a 2-wire pair. You need both to operate the speedometer. On my 89 Firebird V6 the purple and yellow were laid in the harness but not used (came from C100 bulkhead on the driver side firewall). Speed sensor was actually a different wire pair from the passenger side kick panel I think. You might want to confirm that you don't have something goofy like that going on in your car.
03-14-2021, 11:29 PM
#4
Member
Thread Starter
Re: yellow vss buffer box delete
What does a SGI-100BT do? I can look it up but I actually want to hear your answer.
Transmission speed sensor has a 2-wire pair. You need both to operate the speedometer. On my 89 Firebird V6 the purple and yellow were laid in the harness but not used (came from C100 bulkhead on the driver side firewall). Speed sensor was actually a different wire pair from the passenger side kick panel I think. You might want to confirm that you don't have something goofy like that going on in your car.
Transmission speed sensor has a 2-wire pair. You need both to operate the speedometer. On my 89 Firebird V6 the purple and yellow were laid in the harness but not used (came from C100 bulkhead on the driver side firewall). Speed sensor was actually a different wire pair from the passenger side kick panel I think. You might want to confirm that you don't have something goofy like that going on in your car.
03-14-2021, 11:30 PM
#5
Member
Thread Starter
Re: yellow vss buffer box delete
03-15-2021, 09:44 AM
#6
Trending Topics
03-15-2021, 02:43 PM
#8
Member
Thread Starter
Re: yellow vss buffer box delete
For anyone that suffers from the infamous bouncing speedo, deleting the yellow buffer box and grounding the yellow wire to the SGI ground fixed the issue for me.
03-17-2021, 06:14 PM
#9
Junior Member
Join Date: Jul 2016
Location: Wisconsin
Posts: 55
Likes: 0
Received 3 Likes
on
2 Posts
Car: 1989 Trans Am 60k Miles
Engine: 305 TPI 210/218 cam and V3Si blower
Transmission: T56 Swap
Axle/Gears: 10 Bolt w/Yukon Duragrip and 3.73s
Re: yellow vss buffer box delete
^What msammy93 said. When I did my 3.73 swap with my 700r4 my speedometer would constantly bounce around when stopped. After my T56 swap, I hooked the yellow wire (reference wire) to the sensor ground on my Dakota Digital SGI-5E. All is well now.
03-17-2021, 06:50 PM
#10
Member
Thread Starter
Re: yellow vss buffer box delete
Yeah it weird some of the fixes people were trying. I was seeing some guy on YouTube wrapped his purple and yellow wire in foil and then grounded it on one side lol
Thread
Thread Starter
Forum
Replies
Last Post