Originally Posted by arghx
The Rx-8 PCM communicates on a CAN bus (Controller Area Network, not a LAN but a CAN). A lot of the information (especially engine data like rpm) relayed on our ancient cars is now sent digitally on modern vehicles through a high speed and low speed serial bus. So instead of 0-5v volt signals and switched +12V signals, a lot of times it is communicated through packets of serial data, in the same way that your computer communicates with your router at your house.
It is a completely different way of doing things. That's why you can't put the Rx-8 instrument cluster in a 7. If you look at the wiring diagrams of the Rx-8, the vast majority of the information displayed on the cluster comes through serial packets on two wires.
That is the best explanation I've heard. Thank you.
Originally Posted by lupin
You wanna use a rx8 ecu in a obd1 car? You should just go to standalone ecu, I'm running a haltech e8 in my fc.
Why would you want to run a rx8 ecu on your 13b engine, what gains would come of this?
All of the gauges work without the ecu except you need to run the wire for the temp gauge.
I also had to run a output to make my tach work.
I don't want to run the 8 ECU in my car, I want to put a renesis in my FC.
Does your e8 have signals for tach + speedo?