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2002 GTS USDM
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3 Posts
Discussion Starter · #1 ·
Hello.
Long time lurker, first time poster here.

I would like to share my experience of installing Megasquirt (MS3Pro) on my 2002 Celica GTS.
Hardest part was making a dual-ECU wiring harness and a waterproof ECU box.
I also made a rough basemap, but it wasn't that hard.

As a base for my wiring splitter, I took the motor harness extension and the wiring that came with the MS3Pro.
54956


Waterproof dual ecu box
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Additional water temp sensor for Megasquirt
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Video of a running engine and TunerStudio dashboard connected via Wi-Fi

I've made a blog post with more detailed information, wiring connection tables and basemap.
Installing MS3Pro on 2ZZ-GE Toyota Celica 2002

(If posting links is not allowed, I can repost all information here)
 

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Bring on the 12's...
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6,107 Posts
Very very nice work, well done.

Does it allow you to control VVL and VVT like a Power FC? Does it have knock detection and retard built in?
 

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2002 GTS USDM
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3 Posts
Discussion Starter · #3 ·
Thanks!

Yes, MS3pro supports all of this.
Still need to tweak my map for proper smooth VVT control.
VVL is very simple on-off and works great.
Knock detection works with a 2-wire knock sensor. Not sure about the early 1-wire knock sensor.
 

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Bring on the 12's...
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6,107 Posts
I have to ask.....will you be offering this plug/play harness to the community to buy?
 

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2002 GTS USDM
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3 Posts
Discussion Starter · #5 ·
Unfortunately, I don't have time for this because of my main job.
But if someone else wants to build a kit based on my design, I don't mind.
 
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