Speed limiter 1-4?

Tuning discussion for all first generation Mazda RX-8 (2004-2008)
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0124alexrx8
Posts: 29
Joined: October 29th, 2022, 7:54 am

Speed limiter 1-4?

Post by 0124alexrx8 »

Hello. So which one is which? The first one is supossed to be the speed while cold, and the last one I guess it's the absolute speed or whatever. Can someone explain?

Cheers.
2005 RX8 S1
I tune, sometimes......
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Ugnius @ VersaTune
Lead developer
Posts: 636
Joined: March 19th, 2010, 11:57 am

Re: Speed limiter 1-4?

Post by Ugnius @ VersaTune »

They are used in different conditions. We do not know exactly when each one is used, because reverse engineering the ECU without any documentation is a very time-consuming process.
It's best to change them all or try and see which one works for you. If you figure out more information on when each one is used, please let us know and we will update their descriptions.
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