Megasquirt for dummies

All boost related things here. Turbos, SuperChargers, FMUs, Megasquirt, et al.
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Yoshi
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Re: Megasquirt for dummies

Postby Yoshi » Thu Nov 04, 2010 12:46 pm

You haven't read far enough in then lol. Start a new thread for MS3 stuff. Maybe we can get the edge on other E30 sites if we can do it first.
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Re: Megasquirt for dummies

Postby M20_fever » Thu Nov 04, 2010 9:53 pm

Good idea, I'll start one in a bit.
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Re: Megasquirt for dummies

Postby Space Dynamics » Wed Sep 05, 2012 11:11 pm

What is the difference between an open/closed element IAT?
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Re: Megasquirt for dummies

Postby Yoshi » Thu Sep 06, 2012 12:59 am

one is a solid hunk of metal while the other has a little wire sticking out of it. open element IATs react faster. That's why you want them. They tend to be more fragile but I've never seen someone break one.
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Re: Megasquirt for dummies

Postby Space Dynamics » Sun Oct 07, 2012 6:07 pm

I just finished the board, got the firmware on there and tuner studio on my computer. I have no idea what I'm doing. It hard to absorb all the information on the website. @_@
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Re: Megasquirt for dummies

Postby Yoshi » Sun Oct 07, 2012 8:13 pm

it's a pretty dense amount of into even if you're just installing a prebuilt unit. GL man. I tried to make it as easy as possible to set up.
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Re: Megasquirt for dummies

Postby Space Dynamics » Sun Oct 07, 2012 9:41 pm

Yea thank you for this thread, it's what got me to buy Megasquirt.

I don't understand, why do I need another Coolant Temperature sensor?
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Re: Megasquirt for dummies

Postby Yoshi » Mon Oct 08, 2012 1:07 am

You don't NEED it. it's just simpler. MS3 has built in calibrations but otherwise you have to tell the megasquirt how the coolant temp sensor works that you have. By default it works with GM coolant temp sensors.
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Re: Megasquirt for dummies

Postby blasphemy101 » Mon Oct 22, 2012 3:27 am

Yoshi wrote:The easiest method is to get an E36 TPS and to create a simple plate mount to replace the stock TPS.


Anyone care to go over this bit in detail. I've made the mount and it seems to be working, but can anyone tell me how to flip the shaft in the throttle body around so the TPS is oriented correctly?
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Re: Megasquirt for dummies

Postby Yoshi » Mon Oct 22, 2012 11:25 am

confused as to what the issue is. you shouldn't have to flip anything. the mount plate should be all you need.
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Re: Megasquirt for dummies

Postby blasphemy101 » Mon Oct 22, 2012 1:24 pm

If you just put the m50 TPS on and m20, the plug faces towards the engine, making access to it with the throttle body on the car very difficult. Ive read you can flip the shaft in the throttle body 180* so the tps faces outwards. Does it work fine facing the wrong way?

Any changes to the wiring needed?
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Re: Megasquirt for dummies

Postby Yoshi » Mon Oct 22, 2012 2:16 pm

should work fine facing the wrong way. That's how I did it. Never heard of rotating it 180. *shrugs*
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Re: Megasquirt for dummies

Postby blasphemy101 » Mon Oct 22, 2012 4:33 pm

That's good to hear. I didn't like the idea of taking apart the throttlebody with all of its springs. I always seem to pinch myself with springs.
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Re: Megasquirt for dummies

Postby Space Dynamics » Thu Feb 21, 2013 6:44 pm

So, I got the car started! yayy! It is idling very rich! Would I change that with the Warmup Enrichment?

Also, I don't have the E36 TPS in there yet. Should I install that before I continue?
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Re: Megasquirt for dummies

Postby Yoshi » Thu Feb 21, 2013 6:59 pm

I forget what it defaults to when there's no TPS signal. Probably 0. In which case, you can tune idle for right now without it. I'd get it soon though.

Rich at idle can be a lot of things. WUE (warm up enrichments) are only when the car is cold. I forget if there's still ASE (after start enrichments) or not. I'd let the car get to operating temp, then tune your idle bins real quick then tune the other factors later. There's no point in ASE or WUE when it simply is a percentage of your idle bins and those haven't been tuned yet.

plz tell me you have a good wide band O2 sensor.
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