MS3PRO EVO on 4th Gen 3sgte Options

[HardHead93]

I just got my MS3PRO EVO in for my conversion to standalone on my 4th gen 3sgte. I am planning on taking my time with this install to make sure all the wiring is correct and clean looking. To help with the install I grabbed a 5sfe ECU and mounting hardware out of a junkyard car to use as a template for mounting the Megasquirt into the car.









Got relays, distribution blocks, and different color wiring for a clean centralized install.




My goal is to wire the ECU up for as many features as possible and once I get good tune running, start enabling the features. I spent the last few days reading the instruction manual and it has me excited with how much it can do.

This post has been edited by HardHead93: Sep 8, 2017 - 8:15 PM

[HardHead93]

I did some research and found the injector dead time listed for the stock injectors to be 0.804ms @ 13.2V. I played around with the settings and ended up setting the dead time to 0.825ms. That was where I got the best idle. The car idles smooth at around 750 rpm when completely warm. The AFR hovers right around 14.7. SWEET!

[HardHead93]

I did some research and found the injector dead time listed for the stock injectors to be 0.804ms @ 13.2V. I played around with the settings and ended up setting the dead time to 0.825ms. That was where I got the best idle. The car idles smooth at around 750 rpm when completely warm. The AFR hovers right around 14.7. SWEET!

So was having problems getting the AFRs to be consistent when I took the car on a short drive. After doing some research I found that I was using the wrong injector dead time. The reason why I started to question the injector dead time was because on my 5sfte build with 460cc RX7 injectors my dead time was 1.185ms. I figured there was no way that the dead time for my 540cc injectors could be that different. The injector dead time I was using was for low impedance injectors. For high impedance injectors the value is 1.1ms.