# Ecu Code 21

**URL:** <https://forums.speedlife.net/t/ecu-code-21/105037>\
**Category:** SON240sx Automotive\
**Created:** [March 30, 2007, 4:28pm UTC](https://forums.speedlife.net/t/ecu-code-21/105037 "2007-03-30T16:28:50Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Jedi\_Car\_Fan](https://avatars.discourse-cdn.com/v4/letter/j/b9e5f3/32.png) [@Jedi\_Car\_Fan](https://forums.speedlife.net/u/Jedi_Car_Fan)\
**Post date:** [March 30, 2007, 4:56pm UTC](https://forums.speedlife.net/t/ecu-code-21/105037/2 "2007-03-30T16:56:37Z")

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> [@WTB: FPR](https://forums.speedlife.net/t/wtb-fpr/11902/5):
>
> whats does code 21 mean red top sr ?"???

the “search” feature does wonders… as does google, altavista, yahoo and so forth…

learn to use them and appreciate them vs relying on others for your answers 😉

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