# Quick LS1 OBD port wiring question

**URL:** https://forums.speedlife.net/t/quick-ls1-obd-port-wiring-question/193915
**Category:** PittSpeed Automotive
**Created:** [November 29, 2007, 3:09pm UTC](https://forums.speedlife.net/t/quick-ls1-obd-port-wiring-question/193915 "2007-11-29T15:09:08Z")
**Posts on this page:** 7
**Page:** 1

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### Author: ![T34418L31](https://avatars.discourse-cdn.com/v4/letter/t/e56c9b/32.png) [@T34418L31](https://forums.speedlife.net/u/T34418L31)
#### Post date: [November 29, 2007, 3:09pm UTC](https://forums.speedlife.net/t/quick-ls1-obd-port-wiring-question/193915/1 "2007-11-29T15:09:08Z")

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I have the diagram, 12v constant, 2 grounds, and a line to the PCM’s serial data line, but my question is which pin is this on the 2002 PCM?

Thanks!

Jesse

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### Author: ![SoLow](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/solow/32/6001_2.png) [@SoLow](https://forums.speedlife.net/u/SoLow)
#### Post date: [November 29, 2007, 3:13pm UTC](https://forums.speedlife.net/t/quick-ls1-obd-port-wiring-question/193915/2 "2007-11-29T15:13:04Z")

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Mater said its a purple wire coming out of the ECU …not sure the PIN # tho

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### Author: ![Turbo\_Silverado](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/turbo_silverado/32/5990_2.png) [@Turbo\_Silverado](https://forums.speedlife.net/u/Turbo_Silverado)
#### Post date: [November 29, 2007, 3:31pm UTC](https://forums.speedlife.net/t/quick-ls1-obd-port-wiring-question/193915/3 "2007-11-29T15:31:37Z")

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> [@NY laws - no hood?](https://forums.speedlife.net/t/ny-laws-no-hood/33642/14):
>
> Mater said its a purple wire coming out of the ECU …not sure the PIN # tho

are u his personal suckratery? or cant he sit down, cause ur to busy swinging from his nut sac?

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### Author: ![Converted2LSX](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/converted2lsx/32/5962_2.png) [@Converted2LSX](https://forums.speedlife.net/u/Converted2LSX)
#### Post date: [November 29, 2007, 3:32pm UTC](https://forums.speedlife.net/t/quick-ls1-obd-port-wiring-question/193915/4 "2007-11-29T15:32:52Z")

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hope this helps  
 ![http://service.gm.com/engif/000/000/774/774023.gif](http://service.gm.com/engif/000/000/774/774023.gif)

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### Author: ![Converted2LSX](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/converted2lsx/32/5962_2.png) [@Converted2LSX](https://forums.speedlife.net/u/Converted2LSX)
#### Post date: [November 29, 2007, 3:34pm UTC](https://forums.speedlife.net/t/quick-ls1-obd-port-wiring-question/193915/5 "2007-11-29T15:34:30Z")

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Pin 2 - PPL - Class 2 Serial Data

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### Author: ![SoLow](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/solow/32/6001_2.png) [@SoLow](https://forums.speedlife.net/u/SoLow)
#### Post date: [November 30, 2007, 2:13pm UTC](https://forums.speedlife.net/t/quick-ls1-obd-port-wiring-question/193915/6 "2007-11-30T14:13:46Z")

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> [@Where did you ride today?](https://forums.speedlife.net/t/where-did-you-ride-today/33413/38):
>
> are u his personal suckratery? or cant he sit down, cause ur to busy swinging from his nut sac?

:blah: :blah: :blah: :blah:

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### Author: ![T34418L31](https://avatars.discourse-cdn.com/v4/letter/t/e56c9b/32.png) [@T34418L31](https://forums.speedlife.net/u/T34418L31)
#### Post date: [November 30, 2007, 9:25pm UTC](https://forums.speedlife.net/t/quick-ls1-obd-port-wiring-question/193915/7 "2007-11-30T21:25:42Z")

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Got it all wired up through a green wire, Pin 52, on the Blue clip, and I’m about to make a new thread.