z31p_Dhj: Forum archive import (z31performance)

2026-05-15T05:11:15Z

Forum archive import (z31performance)

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{{ForumImport
|op_user=dhj
|op_date=2018-10-09 04:18:49
|post_count=5
|archive_url=/Z31performance_archive/forum/z31-performance-upgrade-forums/engine-management/541331-microsquirt-install-questions.html
}}

'''dhj:''' (2018-10-09 04:18:49)

Hey guys here from Australia, currently installing microsquirt I have currently wired everything up including the relays, fuses, trigger wheel, map,intake temp,coolant temp and 550cc high impedence injectors but have stumbled on CAS wiring and ignition output, i understand there are different inputs to choose from to wire to the CAS, i believe from the research iv'e done vr1 wires is the correct wires? im running the stock ignition coil with a PWR-2 , i know there's alot of older threads on the internet regarding mega/microsquirt installs, but there to old to provide photo's on those threads, maybe if you guys provide the answers ill draw a fresh complete diagram so people dont get stuck in this position!.

i was previously running nistune on my car but after going through 2 ecu's, 4 mafs and a patched 32 years old wiring harness i bit the bullet, i want something that's going to be reliable and easily replaceable, I'm not dissing nistune, just needed something newer to work with.

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'''nismo kid:''' (2018-10-09 10:34:16)

I believe this is how we wired Andrew84zx car with the Z31 cas green=cam angle, red=+, blk=-, white = crank angle. He's on the Efisource Goldbox MS3.

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'''nismo kid:''' (2018-10-09 10:35:59)

Here's a pic from Felix Hamilton's microsquirt kit

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'''dhj:''' (2018-10-10 06:02:44)

Thanks nismo, so if green and white wires are the signal wires coming off the cas what input wires do they connect to? VR- , VR+ , OLED ? I've also read that I need a 1k resistor running off the sensor wires from vref 5v.

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'''nismo kid:''' (2018-10-15 15:01:06)

Felix uses the VR1+ for Crank with the DIYAutoTune wheel. He says thereno reason to wire in the Cam sync on the microsquirt system. (He has setup dozens VG microsquirts & Megasquirts) Also Thanks Felix For the Microsquirt info! Here's info from the Efisource microsquirt I combined 2 pages to make this pic. You'll be using VR1.

[archived image: VG30-microsquirt-M.png]

Here's a pic of Andrew84zx' CAS wiring to the MS3 Gold Box Harness.

[archived image: IMG_0764-M.jpg]

More info from DIYAutoTune about their wheel. Don't use the factory CAS wheel.

[https://www.diyautotune.com/support/tech/hardware/nissan-trigger-disc/ https://www.diyautotune.com/support/…-trigger-disc/]

Forums/Z31P/z31-performance-upgrade-forums engine-management/microsquirt install questions - Revision history

z31p_Dhj: Forum archive import (z31performance)