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 finished up the last of the wiring for the Megasquirt. I am glad I stayed organized. All those wires could have gotten out of hand.




I installed the MS3PRO in its final home today and fired the motor up. I still was not able to get the warning light (CEL) to work. I guess all it needs is a ground to work properly but that still did not work. I may have to just ground the pinout to the sensor or chassis ground to test that the light is even working. Also, I was getting frustrated because my intake temps were reading 130+ degrees when the car was fully warmed up at idle. Then I remembered, I have the IAC pulling air from the engine bay using a breather filter. Once I got on the road and was no longer idling the intake temps dropped quickly.

I took the car for a short ride. I kept it below 3K rpm and out of boost. I let the autotune feature in TunerStudio do its job and clean up the fuel table. It rides pretty smooth. I set up a pre-turbo temp sensor in my cold air intake so I can see how much the air is getting heated up by the turbo. It looks like that even with the air running through the intercooler, the temps are 10 degrees higher by the time it gets into the motor. Not too bad. Also, I have the ECU controlling the intercooler fan based on a target intake temp.

I found a good tuner an hour away in El Paso, TX. Once I get a good enough road tune to drive it conservatively on the freeway. I will take it to him to finish off the tune.