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Post Info TOPIC: Instrument cluster data stream from ECU


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Instrument cluster data stream from ECU


I've been digging all day online and staring at a dump of the data stream from the ECU to the instrument cluster trying to figure out the format.

 

Is there any information anywhere that may have clues?

 

As far as I know the GenII ecu sends 8 bytes, but I don't think the GenI does since the GenII appears to send more data to the cluster.

 

 

Here is the dump I have. Powered up ECU, waited 5 seconds, then started, and revved a couple times, then shut down.

 

Attaching image as I cannot get the formatting right.



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Also if this has been answered somewhere let me know and Ill keep digging. Im working on designing and 3D printing a fully digital cluster but need to get the temp gauge and FI code readout working as well.

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