MegaSquirt Engine Management Systems

Sheldon

Sheldon

Malta Area Rep.
is it possible to get the PNP ready built!? so all we need is to map it. i can be a test dummy for one :D
 
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FoundSoul

Fresh Recruit
Sheldon said:
is it possible to get the PNP ready built!? so all we need is to map it. i can be a test dummy for one :D
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We haven't yet started offering any assembled, the plan was to 'maybe' consider this, but only on proven tested (in house) installs that we could then replicate. People have a different expectation (rightfully so) if we send it out PNP and assembled. If we don't have a car here to R&D on it's tough to be able to meet that expectation since we couldn't test it to make sure we had the proper wiring diagram to build it from, etc. There are times it looks right but maybe there's something small that was missed, and without the car here we wouldn't know it until you plugged it in, and you'd need to be ready to correct it. You'd be more ready to do this though if you had built the unit for your car with our support, we're all about that and will help you all the way. That way if you need to add a jumper, move a jumper, etc, you're familiar with it and it's not a big deal.

Either that or someone can bring a car to us ;).
 
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FoundSoul

Fresh Recruit
The_Notorious_C_A_T said:
Depending on the price I would also be interested in being a test dummy. For the ep82 though.
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Price for the kits is $460. We're running a special though where you can get $125 of that back. http://www.diyautotune.com/diypnp/diypnp_promo.html






ruggiero06 said:
was gonna buy msII 3.57 but im liking the PNP much better now. just wondering if i can run e85 on it.
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No problem. You can run straight up E85 and tune a map for that. You can change to gasoline and tune a map for that. (Use the table switching input to swap tables with a switch on the dash)

Or, add a GM Flex Fuel sensor, and run it flex fuel, just putting in gasoline or E85, whatever is convenient.
 
Sheldon

Sheldon

Malta Area Rep.
hmm so i guess we got to build it our self. thats fine. but not at the moment :( im a bit busy and its not worth it buying it and leaving it here!
 
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pimp4lyphe

Fresh Recruit
here's my MSII build in progress for my Glanza

P1000886.jpg


IMG00065.jpg
 
350ep70gr

350ep70gr

Member +
gorganl2000 said:
hey sheldon and chris
http://www.toyotagtturbo.com/forums/showthread.php?t=51852

take a look through this tread....it may have some info on the stock ignition system and a few diagrams

http://www.austarletclub.com/forums/...0496&hl=wiring
http://www.bajanchameleon.com/no_distributor.html

http://www.bajanchameleon.com/nodistributor_calc.html

i hope it can help some
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Ouaou... That was really good mate! Nice and informative. Took me all day reading and too much new infos for me.I will let some rep when it is possible. Till this time... i will own you..:p:p

Thanks

FoundSoul said:
Our tech guys will get out here when they catch up with Monday email madness, but I can help get you started in the right direction.

All of the basic stuff, power, ground, injectors, CLT, IAT, O2, and TPS sensors, are the same as any other engine in the world. The MegaManual covers this stuff in detail so I won't rehash it.

Your stumbling block is that ignition pickup. It's a Toyota ESA style system from what I can dig up. From what I can find the EP82 and EP91 cars are both single coil distributor based ignition systems. I'll need someone to confirm, but I strongly suspect you've got a CAS in the base of that distributor with two wheels inside of it, and three VR sensors. The Primary wheel has 24 teeth and a single sensor. The Secondary wheel has 1 tooth, but has two sensors that read the wheel, 180* opposed from each other.

We decode this ignition system with no problem, if we can read the signals clearly. And that has always been the biggest trouble. To understand why you have to look at the design of that CAS, and it really boils down to all three of those VR sensors share a common ground. That causes noise on ALL of the sensor outputs any time ANY of the sensors read a signal. The noise can be filtered, and obviously the Toyota OEM ECU did a good job at that, and more recently we've put some work into isolating this troublesome ignition pickup and filtering this noise as well allowing us to read it clearly. Note this is the same type of pickup used on countless other Toyota's and Mazda's. And a very similar system is used on Honda's as well.

To read this clearly with a standard MegaSquirt EMS (MS1 or MS2 based on a PCB v2.2, v3.0, or v3.57 board) I highly recommend the Zeal Daughterboard, this is a dual VR Conditioner board that was specifically designed to solve this issue with these ignition systems. It was designed and tested on RX7's which have been notoriously problematic and use the same CAS. Solves the problem every time. It's been tested on other similar vehicles too now and should work well on your EP's.

The DIYPNP on the other hand does not need the Zeal Daughterboard, this is a new product that was designed with these troublesome ignition systems in mind and we so far haven't had a problem with any vehicle that required additional conditioning.

So-- that said.

NE+ is your primary tach input. Goes to pin 24.

G1+ is your secondary tach input. Goes to wherever you've jumpered on your MS to bring that in.

Ground these sensors (G- VR Sensor Ground) at the ECU.



Jerry a.k.a. 'FoundSoul'
http://DIYAutoTune.com
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Nice and informative. I will prepare for you and your team some question/fotos/p/n/and maybe we can try all together (basicly you) to put this in the right order and build a kind of step guide for our cars.
Then maybe we can approved you to copy it and add it to the megamanual!lol:p
(Just jocking)
Thanks for your help so far.

Chris
 
350ep70gr

350ep70gr

Member +
Ricky@JAP MAD said:
you not fancy making a plug and play ms for the starlets then? :p
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From what i read ms can drive more or less everything from a bicycle :p to a NASA rocket :p . So dont thing that the same box (ms) can be used as plug and play. Every installation will need some form of investigation.
But if we had ones full detailed guide then it would be as easy as you plug a jam or oem ecu. Only fine tune. Fur had make the wiring to be as plug and play. Also in other words megamanual guide you that if you are not willing to do a research about your installation then it is maybe better to buy something else. (And pay 4 times the ms costs and have the half options to use)lol.

Chris
 
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gorganl2000

Lifer
350ep70gr said:
Ouaou... That was really good mate! Nice and informative. Took me all day reading and too much new infos for me.I will let some rep when it is possible. Till this time... i will own you..:p:p

Thanks
Chris
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no problem chris, i figured something in those treads would be of help to you in relation to our ignition system

i'm not so good with the electronics:cool:...BUT i'm pretty good with getting information/research :haha::haha:
 
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FoundSoul

Fresh Recruit
When we have a proven/tested install on your cars we'll be glad to post the details with pinout and startup map on our DIYPNP site for others to benefit from. In fact, if someone is good with electronics and wants to be the first, and is willing to put the car on a dyno to get a good tune on it, contact me via PM or email, I've got a deal for you.

As for full PNP versions of this-- how about this option. One of you who is good with a soldering iron work out the details and build these kits into finished units for others on the side and make yourself a few bucks. There are obviously going to be a few people that would prefer the unit assembled...
 
ramses974

ramses974

Member +
on the MX6 forum all the guy use this Megasquirt
It is an impressive system ..with the fe3N engine in a 626 +turbo they can go with a coil pack and far to 450hp

i have an 626 with the same engine and i will follow them with this standalone
:shoot::shoot:
 
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ruggiero06

Member +
is megasquirt better optionswise than an aem standalone or greddy emanage ultimate or greddy standalone? what about a hondata (considered the best ecu for hondas)?

have a little argument me and my buddy (hes a honda guy lol) are having. hes never heard of megasquirt so he thinks it crap. i tried telling him that honda guys are all about name brands and not about performance and this is a way to prove him wrong lol.
 
Sheldon

Sheldon

Malta Area Rep.
ruggiero06 said:
is megasquirt better optionswise than an aem standalone or greddy emanage ultimate or greddy standalone? what about a hondata (considered the best ecu for hondas)?

have a little argument me and my buddy (hes a honda guy lol) are having. hes never heard of megasquirt so he thinks it crap. i tried telling him that honda guys are all about name brands and not about performance and this is a way to prove him wrong lol.
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this has every feature or almost every feature that any expensive ecu has!
 
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FoundSoul

Fresh Recruit
ruggiero06 said:
have a little argument me and my buddy (hes a honda guy lol) are having. hes never heard of megasquirt so he thinks it crap. i tried telling him that honda guys are all about name brands and not about performance and this is a way to prove him wrong lol.
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http://www.youtube.com/watch?v=5qmJSGS3u7I

World land speed record, using a v3.57 MS1. Not even an MS2 which would run even better but wasn't needed to go over 240mph ;). This is a 515ci BBC with twin turbos. I go out every year to crew for these guys. Fun times.
 
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