Adding EGR to Honda with Kpro

[BongoBennie]

I am renewing my interest in my K swapped turbo Insight which was for commuting into the big city. Since I retired I have decided to Door Dash in my small town. I want to pull the turbo motor out and run a stock K24a4 Accord motor and geek out on fuel consumption with a purpose. K24s came with and without EGR valves and anyone that adds Kpro to the engine will run without.

First question for the group is should I add EGR at all? What kind of gains in MPG can I expect with a properly functioning EGR?

Second question is for the Hondata Kpro types.... With all the functionality of kpro would there be a way to properly control it, maybe the NO2 output in some way? I have also thought about wiring in a manual switch just to play with it.

[Ecky]

You're better off running KTuner, which (I believe) has native EGR control, since it's based on the Accord ECU.

There are some threads on Insight Central where, I think it may be Julian Edgar? experimented with various degrees of EGR, and quantified the gains.

Edit: KPro does well with on/off controls but doesn't easily do tables for peripherals. You would need an external controller (Arduino would do it), or pick a good EGR duty cycle and just turn it on to that when outside WOT conditions.