Hondata

So my car is a 2005 rsx I just swapped a k20A type r into my car, I have hondata Kpro 4 with the PRB ecu and adapter harness for the 05-06, also using the 2005 rsx engine harness.
Whenever I start up the car the RPM's are reading on the MPH side of the cluster and the RPM side is reading the MPH so it is reversed, I was wondering what can I do to fix that?
Also the temp gauge is not working.

What is the serial number that is on the K-Pro board inside the ECU?

What is the serial number that is on the white ECU plug inside the ECU as well?

Kpro board number is 55856
The white plug is 37820-prb-305 2054-100395 OL12

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Check to see if the wires in the stock harness for the VSS out from the ECU and the Tach signal have been swapped.

That's exactly what it was I swapped the vss and rpm wires on the back of the cluster, now it works like a dream thank you so much for the help you are awsome. 🤘👍😎

I literally just did this exact swap. Willing to bet you swapped the VSS and Tach wiring as it isn't THAT hard to do lol

Sorry I missed Spunksters reply.

Now trying to figure out my idle, I have a brand new iacv and everything is working fine just the idle is sitting around 964 rpm when engine is warm, how do i get it to idle around 750 to 800 i tried the idle relearn process but still no luck any ideas?

I tried to mess around with the duty valve cycle too but sounds like it runs rough if you move it all the way to the left, right now I have it about 3 click Mark's from the middle to the left.

No vaccume leaks either

The idle speed jumped up alittle

With the idle controller unplugged, what does it idle at?

I will double check when I get home but I believe around 1,500 rpm

If that is the case, then the throttle body need to be adjusted so that it idles lower.