Hondata

I couldn’t resist and at the risk of voiding warranty for opening the case. Here’s what I found! One of the screws backed out and the Hondata board was sitting up so that the pins were barely in the sockets.

Pushed the board back down and a little blue loctite to both screws. The other screw was ...

By “stall” I mean the gauges and sensors stall. The rpm will stop moving until I wiggled again.

I have a K24Z3 in a Miata running a KPro V4 serial #59559.

The car is a track car and runs fine… however, upon first start, if the check engine light is on, I now know that I have to insert a USB into the KPro port and then the ECU will cycle (car kinda misses when it reloads) and the car will be ...

Battery voltage should have been the first clue...

TLDR: Added ground cable between valve cover and timing cover. Timing cover already grounded to chassis.

The common 12V to the injector harness was only reading 10.5V. As soon as we added the ground to the valve cover voltage went to 12.5V ...

I have recently completed a K24Z3 swap in to a 2001 Miata using the KPower engine and conversion harness along with a KPro V4.

I have double checked all wiring. We are getting spark indicated by ground the coil and plug on valve cover bolt. And the fuel rail is pressurize.

The calibration I used ...