# HEMI Throttle Body on 1.8T
**URL:** https://community.ecumaster.com/t/hemi-throttle-body-on-1-8t/6401
**Category:** EMU BLACK / CLASSIC
**Tags:** wiring
**Created:** [August 29, 2026, 12:11pm UTC](https://community.ecumaster.com/t/hemi-throttle-body-on-1-8t/6401 "2026-08-29T12:11:44Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@68Gregso](https://community.ecumaster.com/u/68Gregso)
#### Post date: [August 29, 2026, 12:11pm UTC](https://community.ecumaster.com/t/hemi-throttle-body-on-1-8t/6401/1 "2026-08-29T12:11:45Z")
Hi, just fitting a HEMI throttle Body onto my 1.8T . Currently has a Bosch Motorsport TB fitted but going bigger (for Drag racing not road) I have found conflicting information regarding the Pin out, i brought it from Speeding Parts and they show:
1 - TPS 1, 2 - Sens GND, 3 - Motor - (neg), 4 - TPS 2, 5 - Motor +, 6 - 5v supply
Whilst looking for a diagram showing the pin/cavity numbering i have found everywhere else lists:
1 - TPS 1, 2 - 5v supply, 3 - Motor +, 4 - TPS 2, 5 - Motor - (neg), 6 - Sens GND
So conflicting pos/neg on the motor and power supply
As well as this i have found conflicting numbering, not front back numbering but starting at opposite ends.
Does anyone have any pin out and cavity numbering that can be confirmed as correct?
Thanks
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### Author:  [@raceware](https://community.ecumaster.com/u/raceware)
#### Post date: [August 30, 2026, 3:20am UTC](https://community.ecumaster.com/t/hemi-throttle-body-on-1-8t/6401/2 "2026-08-30T03:20:08Z")
FWIW - A Google search for the Hemi T/Body pinout indicates that “some aftermarket units use a reverse pin 3 & 5 for motor polarity”. It also shows your first pinout from Speeding Parts as correct. Keep in mind this is Google doing an online search. It may actually depend on who made the T-Body.