Throttle Body Options
Thread Starter
Burning Brakes
Joined: Aug 2011
Posts: 830
Likes: 288
Throttle Body Options
Been looking around at upgrading the intake which of course means a different throttle body. Was wondering if there is anything out there besides an LS2 silver blade throttle body with adapter harness that would work. I see that the gold blades have 2 problems. first is the throttle body opens in the reverse direction. But if the mounting hole spacing is uniform side to side cant the throttle body just be rotated 180 degrees??? Seems there is enough room on the passenger side of the engine for the actuation motor. Second problem seems to be the TPS voltages being off and throwing codes. I can understand seeing this is a 4 year only part that there is limited availability but the prices seem to be way out there. I am surprised no after market companies are making units to accommodate this problem. Since the car SHOULD be tuned after install is this a problem that can be compensated for???
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Opening in the reverse direction means that it is trying to SHUT when you want it to open. So the GOLD one will not work if you do the proper wiring conversions.
Thread Starter
Burning Brakes
Joined: Aug 2011
Posts: 830
Likes: 288
Did more searching and found out the motor in the throttle body is not a PWM pulse width modulation motor but just a simple DC motor. So reversing the polarity will solve the problem of reverse rotation. The other REP codes can be solved by tuning. Also found this post on here from a few years ago.
https://www.corvetteforum.com/forums...y-on-a-c5.html
Have a conversion harness coming in Friday and found a cheap stock LS3 throttle body. Will keep everyone informed to my findings. Tried to get a silver blade and everyone wanted at least $240. While I do not mind spending money on quality parts, I DO mind over paying when a lil knowledge and tinkering can save me 60%.
https://www.corvetteforum.com/forums...y-on-a-c5.html
Have a conversion harness coming in Friday and found a cheap stock LS3 throttle body. Will keep everyone informed to my findings. Tried to get a silver blade and everyone wanted at least $240. While I do not mind spending money on quality parts, I DO mind over paying when a lil knowledge and tinkering can save me 60%.
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7th Gear
Joined: Mar 2018
Posts: 7
Likes: 0
From: Boerne Texas
How has this been working for you?
Any codes being thrown?
I have the same harness and am trying to figure out how to set it up to work with a NW102, which is suppose to be the same pinning as a gold LS3 throttle body...
Thanks
Any codes being thrown?
I have the same harness and am trying to figure out how to set it up to work with a NW102, which is suppose to be the same pinning as a gold LS3 throttle body...
Thanks
Thread Starter
Burning Brakes
Joined: Aug 2011
Posts: 830
Likes: 288
Been working flawlessly. I admit I have no need to go full throttle stop light to stop light and have only done so 3 or 4 times but no codes and flawless mechanical operation since the install and minor adjustments to the tune.
Drifting
Joined: Nov 2017
Posts: 1,385
Likes: 299
Or was it sufficient to just reduce the max throttle opening percentage?
Thanks!
Thread Starter
Burning Brakes
Joined: Aug 2011
Posts: 830
Likes: 288
Actually had to switch all 4 wires for the TPS. Swapped the power and gnd and also swapped TPS 1 and TPS 2. I did nothing with the motor wires, left them as is. Also had to drop max rotation to 94%.
I have 3 throttle bodies with harnesses tested working perfect and no one wants to buy any. Guess they want to hope and prey on a silver blade.
I have 3 throttle bodies with harnesses tested working perfect and no one wants to buy any. Guess they want to hope and prey on a silver blade.
Advanced
Joined: Apr 2019
Posts: 50
Likes: 67
From: Saginaw, Tx.
C5 of Year Finalist (stock) 2019
Throttle body and harness
Originally Posted by bonesbrakr;[url=tel:1603712524
1603712524[/url]]Actually had to switch all 4 wires for the TPS. Swapped the power and gnd and also swapped TPS 1 and TPS 2. I did nothing with the motor wires, left them as is. Also had to drop max rotation to 94%.
I have 3 throttle bodies with harnesses tested working perfect and no one wants to buy any. Guess they want to hope and prey on a silver blade.
I have 3 throttle bodies with harnesses tested working perfect and no one wants to buy any. Guess they want to hope and prey on a silver blade.