I am tuning Kpro with ITB (Alhpha-N).
After a pull on high cam, TPS and INJ become 0% (overrun cutoff), then INJ no longer responds to TPS and engine shuts off.

What causes this?

Thanks for your help!
INJ stops responding to the TPS

 

For "Shits and Giggles" I jacked up the "overrun cutoff min rpm" to 9000 RPM, BINGO!

The INJ responds back to TPS!! Actually INJ never goes to 0%. This might waste some gas, but I can live with it. Now I need to tweak the fuel table for TPS=0%.

The Overrun cutoff is causing an issue on my car. Is this a K-Pro V4 Alpha-N issue? I don't know. I still want to know what makes the INJ stop responding to the TPS.

Cheers,


Overrun cutoff solution