2 replies to this topic

[Alberto]

I'm wiring in a new to me EVO4.  Trying to determine which wire to use for RPM?  I already found the tach signal wire in the Miata harness.  But which wire do I use from the AIM pigtail?  The Blue says 5-50v and the White says 150-400v.  Both seem to work. Which is the correct one though?

 

Interesting to note that they both seem to display the same incorrect RPM at idle (~2500ish) but I'm thinking that might be a config that I need to fix.

 

Thanks.

[TrailBrake]

Use the blue wire. You need to check the divider in the RPM setup. It should be /2 IIRC.

[Alberto]

Thanks!