Date: Mon, 2 Feb 2009 11:33:08 -0500
Reply-To: pdooley <psdooley@VERIZON.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: pdooley <psdooley@VERIZON.NET>
Subject: Megasquirt....RE: Boxer electronics options?
In-Reply-To: <003501c9854c$00fcb560$0201a8c0@korky2>
Content-type: text/plain; charset=us-ascii
Unfortunately MS is not legal. It is marketed for off road use.
I suspect it could be programmed to run cleaner than digifant.
MS can interface with a modern wideband O2 sensor, which is much more
precise than the factory narrow band O2's used in stock applications.
You can monitor and adjust the AFR through the datalogging function.
Actually, you can check all parameters- coolant temp, MAP, rpm, AFR, intake
air temp, TPS, injector duty cycle, pulse width and spark angle.
These parameters can be loaded into a graphical viewer for a clear picture
of all values vs. time.
You can tweak the AFR in lean or rich areas in your datalog by editing fuel
tables in the software. You can also adjust spark angle, of course.
MS can run on WBX engine using the factory hall sensor for RPM measurement
and spark control. The system is set up to use cheap, reliable GM coolant
and air temp sensors or can be programmed to accept input from the factory
bosch sensors.
You get to ditch your AFM as the MS uses a GM MAP sensor mounted onboard.
The GM MAP sensor can be replaced if it ever fails(unlikely, and very cheap
if it does).
As I said many times before, MS is a fantastic engine management system, but
the learning curve is tremendous.
I wouldn't try to install this setup on my vanagon over a weekend if I
needed the vehicle for work Monday.
It's like anything else in life, you get out of it what you put in.
You wanna spend a lot of time learning about it, it will reward you.
It is definitely not plug and play, and no good in emission checking states,
even though it would probably run cleaner than stock.
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Ken Lewis
Sent: Monday, February 02, 2009 10:36 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Boxer electronics options?
Are these legal to drive on the road yet?
Ken Lewis
http://neksiwel.20m.com/
in statu viae
----- Original Message -----
From: "Greg Potts" <greg@POTTSFAMILY.CA>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, February 02, 2009 7:50 AM
Subject: Re: [VANAGON] Boxer electronics options?
> Hi Dahn,
>
> One option for what you seek would be MegaSquirt. It's an open-source
> DIY fuel injection system that can be installed using the original VW
> sensors and fuel rail. It will take some work to adapt it to your
> vehicle, but in the end you wind up with a much more flexible and
> efficient system.
>
> http://www.msefi.com/index.php
>
> IIRC there are some people on this list who have used it, though I am
> not among them.
>
>
> Happy Trails,
>
> Greg Potts
> 1973/74/79 Westfakia "Bob the Tomato"
> 1987 Wolfsburg Weekender Hardtop
> www.busesofthecorn.com
> www.pottsfamily.ca
>
>
>
> dahn van laarz wrote:
>> I see a lot of discussion on various engine rebuilds and exchanges, but
>> nothing regarding the possibilty of changing out the notoriously fickle
>> electronics that manage the boxer engine. I'm admittedly
>> naive in this area but there must be something out there that would be an
>> upgrade to replace the AFM, ECU, idle controllers, etc.
>> I'm coming from a bit of frustration... just got back to SF from a mostly
>> nice trip to Death Valley with my 85 GL... nice except for intermittent
>> surging (AFM going bad?) and a momentary loss of power on one grade. The
>> ECU was replaced about 15K ago, the Engine is a 2.3L Gowesty with 5K, the
>> Tranny is new, the fuel lines are ok, the cooling system is good, the
>> fuel filter is new, etc, etc.
>> It seems like an endless operatic deathscene as the 25 year old +
>> electronics fail... if there were something new couldn't it be more
>> fuel-efficient as well?
>>
>> Dahn
>> 85 Westy GL "Betty"
>>
>
> --
>
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