jdmfreak's A NEW BEGINNING (BUILD THREAD)
- Thread starter jdmfreak
- Start date
And after seeing your picture I had to dig these puppies out of the parts shed 
Think I am going to paint them first tho its kinda chipping in places
Think I am going to paint them first tho its kinda chipping in places
I have a set here that I could fill in for you when I make the coil bracket. I'm making some headers today so I thinker with the coil bracket tomorrow.
So do I have this correct for the iacv? (my writing is the wire colors on the stock harness according to Cygnusx1)
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Pyro how does the iscv go? My diagram seems wrong and I can't find where you posted how you did yours :-\
Thanks I thought that may have been where I found it but I couldn't find your build thread on my phone for some reason
Well let me know how it works out for you. I'll take a pic of my idle valve settings on tunerstudio if it helps you out.
The idle valve will work the way your picture was labeled. 1a/b need to go to one set of coils and 2a/b need to go to another.
Mine on the 1j is setup that way and works. I also have the 12v still hooked up. Most people like to use it without tho I wanted full function and interchangeability with stock Ecu.
Mine on the 1j is setup that way and works. I also have the 12v still hooked up. Most people like to use it without tho I wanted full function and interchangeability with stock Ecu.
Thanks I wasn't sure if there was some kind of polarity issue I couldn't see in the diagram
Is there any difference running with or without 12v?
Is there any difference running with or without 12v?
The stepper motor driver that is built in with megasquirt is a bipolar stepper motor driver, which means it alternates the polarity to the coils. The stock ecu had a unipolar driver, which meant it only grounded the pins, which is why you needed the 12v supply. For my setup, I just diked the two center wires and ran the remaining 4 to the s1-s4 pins for the megasquirt relay board.
They are pretty much identical. The board is the same, just rhe processor is different. Now there is an expansion board that is on ms3 that adds some additional capabilities and sensors but the standard 37 pin connector pinout is the same.
It just adds to it as far as I know. The megasquirt website would be the most up-to-date info though.