# ECU Identification "3R"

**URL:** https://forums.speedlife.net/t/ecu-identification-3r/100684
**Category:** SON240sx Automotive
**Created:** [October 11, 2006, 6:45pm UTC](https://forums.speedlife.net/t/ecu-identification-3r/100684 "2006-10-11T18:45:28Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![just\_ersser](https://avatars.discourse-cdn.com/v4/letter/j/ccd318/32.png) [@just\_ersser](https://forums.speedlife.net/u/just_ersser)
#### Post date: [October 11, 2006, 6:45pm UTC](https://forums.speedlife.net/t/ecu-identification-3r/100684/1 "2006-10-11T18:45:28Z")

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hey guys i some how found a nissan 3R Ecu in my garage  
i have no idea what it is for? please help

A18-K21 GB7 8121

that is all the numbers off of it

thanks  
justin