Hondata

After the suggestions to improve voltage to the ECU during cranking - I was able to do that quite easily. But, not having full confidence - and know that each time we iterate we essentially miss another race venue, I decided to replace the ECU/K-Pro with another one. Went to the dyno today to get ou...

See my "ECU Shutting Down" thread for some recommended wiring of MAIN and FUEL relays.

From what I remember finding on the internet and I believe the way the KMiata swap wiring is supplied, this is the circuit that is advocated (and which we used - originally. https://s5.postimg.org/jyjnad7pz/KSwap_Old.jpg Notice that the single 12v "in" wire (Fuse 6 in our case) supplies lo...

Spunkster - thanks again for your help. Do you think that there is a good chance that this may be at the root of the problems we have been having??

Battery is an Odyssey PC925. AGM

Spunkster - thanks for your help. Just tried the test you suggested. Removed cover from ECU so I could easily get at ECU pins. Very cold start - hasn't been fired since Sunday... 12.2 V at ECU pin with ignition on 10.0 (and maybe even a 9.X) during cranking 14.2 as soon as engine fires Using a Fluke...

VERY much appreciate your response. It is the case that everything works fine... at first, and then goes South. Just as it seems to eliminate the ECU/Hondata, for the same reason it also seems to exonerate the wiring. ALL is good at first. (Not trying at all to be argumentative.) The car is NOT fine...

We continue to have this same proble, We have had the race car to the track 3 times now and the scenario is always the same. At the track, the first 2 ~20 minute sessions are just flawless. The car runs great and driver is able to push the car hard. Approximately 20-60 minutes between session. Typic...

Spunkster - I very much appreciate you attention to responses and how fast you are to support your products. We will definitely investigate. Wiring is all relatively straightforward in our application. Engine harness side is pretty much all OEM. Body side, is pretty much all us. What troubles me is ...

Since March we have been in the process of building a track-dedicated car (Exocet chassis) and we are running a K24A2 with the Hondata engine controller. We spent several hours on the dyno (first time tuning a Honda) and had good success building a reasonable tune. Full disclosure (and maybe a key):...