[tcb] Re: Mega squirt. A questionnaire?
- From: "Denis Dodson" <coocoo@xxxxxxx>
- To: <tcb@xxxxxxxxxxxxx>
- Date: Sat, 20 May 2006 21:37:32 -0500
You sent Mark a questionaire? I can't hardly spell questionnaire, much less can
I fill one out. Is there any part on a Split Window bus that might require a
questianair? Besides the engine and tranny, how many moving parts do I have on
a Split? I think I could tell you about anything with only about 10 or 12 yes
or no quiries. Notice how I said quiries? That's 'cuz I caint spell qweschinair.
----- Original Message -----
From: Chuck Blue
To: tcb@xxxxxxxxxxxxx
Sent: Saturday, May 20, 2006 7:35 PM
Subject: [tcb] Re: Mega squirt
I'm waiting for a fuel injection repair report.I think I sent Mark a
questionnaire and haven't heard anything back.Is everything fixed?
ole blue
----- Original Message -----
From: Mark Sawyer
To: tcb@xxxxxxxxxxxxx
Sent: Monday, May 15, 2006 9:00 AM
Subject: [tcb] Re: Mega squirt
I have checked the fuel pressure and it is exactly where it is suppose to
be. I have not replaced the relays. That might be a good idea since I think
they are the original ones.
I have replaced the ECU more than once but always with a used one. Can the
ECU overheat and have the electronic values be effected? I have all the heat
sinks and grounds hooked up properly. I finally found my volt meter late last
night so I am going to unplug the ECU and start checking the values at the plug
again. Maybe Dan could come over and give me a hand and see what he thinks
about installing the Megasquirt.
Thanks---Mark
Chuck Blue <sukchew@xxxxxxxxxxxxxxxx> wrote:
Have you checked your fuel pressure? I don't know what it is supposed to
be but the pressures should be listed in you manual.do you have a fuel pump
relay?That is also a possibility.
I would think that with the sensors that are on that engine the
megasquirt should be easy to install.You will probably have to install a TPS a
mat sensor .It probably has a MAP sensor some where ,you might want to check
that.You could have a electrical breakdown due to the heat from a long trip.Can
you duplicate the problem with out doing the long trip thing.generally a temp
sensor will not cause a cutting out condition.It will make things rich or lean.
The Sciroccos seem to have lots of fuel pump problems but most of them
are high psi systems (110psi)I don't think yours will be that high probably
around 43 psi
I think the Megasquirt would be relatively easy to install on the
Vanagon.Most of the sensors and injectors are Bosch and that is compatible with
the Megasquirt system.You probably would want to use a heated narrow band 02
sensor as it will give you better information.I have installed a wideband 02
sensor with a controller and a digital air fuel ratio gauge on the dash.It
allows a much finer
Mixture adjustment but it certainly is not required.If you do decide to
Megasquirt you might want to consider the megaview.It is a 45 second scroll of
engine information ,some of which is really handy.You can also use it to change
the mixture from the cockpit but it is not recommended for obvious reasons.
ole blue
----- Original Message -----
From: Mark Sawyer
To: tcb@xxxxxxxxxxxxx
Sent: Friday, May 12, 2006 4:05 PM
Subject: [tcb] Re: Mega squirt
Hi Chuck,
My 84 vanagon has the original 1.9 liter, fuel injected, watercooled
"wasserboxer" engine. it is the digijet fuel injection system with a single
wire O2 sensor, 2 temp sensors (one for the ecu, one for the temp guage) no
power steering, no functioning air conditioning (altho the compressor is there)
and manual transmission. I have been having problems with the vanagon cutting
out and loss of power while on long road trips. I have recently replaced the
air flow meter, cleaned all the ground connections, changed ignition coils,
checked the injectors, the catalytic converter and the muffler are both fairly
new. I might have a bad temp sensor from what I was checking last weekend, but
I'm not sure. haven't been able to find my volt meter yet. any advice you could
give would be greatly appreciated.
Thanks, Mark
Chuck Blue <sukchew@xxxxxxxxxxxxxxxx> wrote:
Well, I don't know anything about computers,fuel injection systems,or
building circuit boards.I don't type either so everything is an adventure.I was
still able to build the V2.2 megasquirt FI controller and make it work.It's not
rocket science.You just have to be able to read and follow directions.It's also
nice if you are able to solder.If you don't know how many cylinders your engine
has you probably shouldn't attempt the build
What type of fuel injection system is mark running?I assume it is
on a air cooled engine but I don't know.If some one would contact me with all
of the information I might have some suggestions.Megasquirt can be put on
anything that has a gas engine and be made to run.
Does the engine have electronic FI now or is it a cis
system.inquiring minds want to know? If it has elect.injectors the installation
is much easier.If you want to use the squirt to controll Ignition that is also
possible .I didn't want to attempt that because I wanted it to be as simple as
possible.I went strictly by the book because it didn't require as much decision
making as to which part might be substituted. All of the needed components are
discussed in detail.
When I built mine there wasn't any phone numbers to call so I had
to learn to sorta use the computer to get information.It's still slow and an
adventure. http://www.bgsoflex.com/megasquirt.html or http://www.msefi.com/
both have lots of information read everything that you can find.If anyone is
serious about building a system print everything and start a book.Everything
that you need to know is available on their web sites and forums.
If marks FI system has been in use for 22 years it probably is not
to bad of a system.It may just need someone to do a little stroking in the
right spots sensors and things need to be checked along with connections and
wiring and such.
Here are a couple of numbers where I can be contacted 903 221 0434
(temp number)or 903 312 5257 cell numbers.If I have to do this via a list you
might as well set it on fire because it will never get done.
If I knew what the symptoms were and what kind of engine we are
discussing I might be able to give a little more information.Regardless as to
what Denis might think, I am not a mechanic but I do know quite a bit about
cars,having worked around cars, engines and mechanics most of my life.
I'll be glad to help out If I can.
Man, all this typing ain't fuckin easy.
ole blue
----- Original Message -----
From: Dan Martin
To: Chuck Blue
Sent: Friday, May 12, 2006 11:20 AM
Subject: Fwd: Mega squirt
Hi Chuck!
Mark is continuing to have problems with his stock FI.
I forwarded him these mails I got on the type 2 list.
We (he,I and another friend of his) are thinking maybe mega squirt
could be a solution.
What do you think?
Can you provide us with some good places to look on the net?
Thanks!
Begin forwarded message:
From: Mark Sawyer <mechmark@xxxxxxxxxxxxx>
Date: May 10, 2006 1:48:51 PM CDT
To: Dan Martin <danandkatrinamartin@xxxxxxx>
Subject: Re: Mega squirt
Not a word from Chuck or anybody else about fuel injection. I was
doing some testing the other night and thing that I have a bad temp sensor. I
would still like to invest in a system that would be more reliable than a 22
year old and outdated injection. I just don't know enough about computers to
even know where to start. I am going to go get my spare engine out of the store
room this weekend and start getting ready it ready to install. I think the
engine that is in the vanagon now is starting to knock a little more than it
use to, or I could just be getting paranoid.
Dan Martin <danandkatrinamartin@xxxxxxx> wrote:
Have you heard anything from Chuck?
Denis and I also know the Dave Bolen listed in these e mail
from the type2 list.
Dave is in the VW club Denis is in now, he lives in
Fayetteville, Ar..
I know not a lot of hope for hands on help but I think you and
Mark and I could pull it off with Dave and Chucks help.
See what you think and I will see if we can figure some way to
commucate.
I may foeward this to them to get their opinions soon.
Begin forwarded message:
From: Gundesens <gundesen@xxxxxxx>
Date: May 7, 2006 3:28:12 PM CDT
To: type2@xxxxxxxxx
Subject: [T2] Megasquirt on 82 Vanagon
Hello list, I am making slow progress installing a new
Megasquirt injection system on the bus and could use a leg up from the guys who
have done this on the same engine.
I am using MS-II, V3.0 board, fuel only until I get
everything running well, then ignition control as well.
I cannot get it to idle, and only runs when I advance the
ignition a lot.
I would love to get your .msq and VE tables if you have
arrived at a tuning set-up that you are happy with. Are you running the
original low impedance injectors? with PWM or resistors?
Thanks very much. I will take this off list now, I just
wanted to contact the VW guys on megasquirt as directly as I could.
GG
'82 California Vanagon
Calgary, Alberta
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Begin forwarded message:
From: "Dave C. Bolen" <dbolen@xxxxxxxxxxxxxxxxxx>
Date: May 8, 2006 11:17:02 AM CDT
To: andy <andy@xxxxxxxxxxxxx>
Cc: type2@xxxxxxxxx
Subject: Re: [T2] Megasquirt on 82 Vanagon
Ok,
So here is what I sent back this morning....not megasquirt
V3, but an
earlier version....with pics...in a camper.
Ed's site is still up and should provide you with the numbers
you need.
Compare pressures and injectors and go from there.
Great pics also!
http://tbone2091.tripod.com/megasquirt/
Cheers, dave
--
-------------------------------------------------------------------
"I'm more interested in getting it right, than being
right"....dave
On Mon, 8 May 2006, andy wrote:
Actually, can we kinda keep this a little on-the-list?
I'd like to follow this as well. While I have no need to
mess with the FI in
the Guac, it's something I've always been interested in.
Me too.
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Begin forwarded message:
From: "Dave C. Bolen" <dbolen@xxxxxxxxxxxxxxxxxx>
Date: May 8, 2006 2:59:06 PM CDT
To: DurocShark <durocshark@xxxxxxxxx>
Cc: andy <andy@xxxxxxxxxxxxx>, type2@xxxxxxxxx
Subject: Re: [T2] Megasquirt on 82 Vanagon
Don,
Let's see if I can remember....
Depends on how far you want to take it....
No AFM box.(lose the intake restriction.) MS uses a throttle
position
sensor.
No stock ECU box. Use MS ECU
No double relay. Use MS Relay package.
If you want, you can loose the resistors for the
injectors....although
it may be a more robust system if you leave them.
Lose the stock temperature sensor. Use the GM replacement in
the air
stream.
I may have missed something along the way.
The good/bad news.......
You have complete contol over the ECU, which means you can
program
pretty much everything....the bad news is the same....you can
do harm to
your engine by programming it to not inject enough gas at
high speed.
Of course, you can do that with a carb as well if you try....
Go here to learn more.
http://www.megasquirt.info/index.html
Cheers, dave
--
-------------------------------------------------------------------
"I'm more interested in getting it right, than being
right"....dave
On Mon, 8 May 2006, DurocShark wrote:
http://tbone2091.tripod.com/megasquirt/
That is beautiful. Absolutely beautiful.
Now, what is the benefit for a stock configuration to using
MS as opposed to
the stock computer?
--
Don
The Guacamole Bus
http://www.donimages.com/guac
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Begin forwarded message:
From: George Lyle <glyle@xxxxxxxxxxxxx>
Date: May 8, 2006 4:35:19 PM CDT
To: "Dave C. Bolen" <dbolen@xxxxxxxxxxxxxxxxxx>
Cc: DurocShark <durocshark@xxxxxxxxx>, andy
<andy@xxxxxxxxxxxxx>, type2@xxxxxxxxx
Subject: Re: [T2] Megasquirt on 82 Vanagon
On Mon, 8 May 2006, Dave C. Bolen wrote:
Go here to learn more.
http://www.megasquirt.info/index.html
Another alternative for those who have less time and more
money:
http://www.sdsefi.com
I think that Jake Raby is using the SDS unit on his type 4
engines.
Lots of info, including complete manuals, on that site.
George
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Begin forwarded message:
From: Gundesens <gundesen@xxxxxxx>
Date: May 8, 2006 10:29:28 PM CDT
To: type2@xxxxxxxxx
Subject: [T2] Re: Megasquirt on 82 Vanagon
Thanks for the interest. I will eventually get pictures and a
story up on my website.
Benefits to me:
Well, my existing stock setup was giving me a new problem to
deal with every couple of months. This was attributable to 24 year old wiring
being heat damaged so it snapped instead of flexed when bent. Also the ECU was
flaky, verified by swapping with a federal ECU which ran poorly, but had
different issues than the original California one. I just recently opened up
the Cal. ECU and was surprised by the amount of corrosion which had crept
inside it, but no surprise it was flaky after seeing that. By the way, I was
going to try and salvage and use the injector resistors which I thought were
built into the ECU (not external on this model), but could not find them.
Perhaps Bosch used some sort of pulse width modulation (PWM) to control the
current on the stock unit? The resistors should be big and obvious if they
were part of the circuit.
Right, back to the benefits... I would have had to rebuild
the wiring harness almost from scratch to do it right (no-one supplies rebuilt
FI harnesses AFAIK), and find another old ECU which worked reliably (or paid
the big bucks for the rebuild if available). The alternative I chose was the
Megasquirt.
Advantages:
- have the fun of building it (sort of like the fun of
building a model airplane kit, but more of it)
- Learn something about fuel injection and engine tuning in
fair depth
- simplify the whole system hardware-wise >> eliminate the
AFM, coldstart valve, thermotime switch, double relay, decel valve. I also got
rid of the digital ignition set-up except for my hall-effect distributor.
- Gain a new modern fuel injection system which is totally
user programmable (or self-tuning to an extent), for at least as good as
like-new performance. I had just rebuilt the engine, it now has ~750 miles on
it.
- The current Megasquirt version WILL control ignition
advance as well, but I need to get the fuel right before going there.
Stock components:
- fuel injectors
- air filter and housing
- temp-II sensor
- oxygen sensor (Cal. Vanagon)
- distributor (so far - will remove the centrifugal and vac
advance mechanisms when I let Megasquirt control the spark)
Custom or modified:
- interface flange/tube between the S-tube and the air filter
housing
- added a GM intake air temp sensor in the air filter housing
- modified a throttle body from a 914 to accept a Bosch
potentiometer type throttle position sensor (TPS) - std Volvo 850 part. I
couldn't use the original TB because the shaft did not extend out the bottom
for the needed TPS.
- put in an MSD ignition system, wires and a zero ohm
distributor rotor (hey Richard! Niehoff WA307 - it has the narrow contact nose,
but zero ohms without modification ~ $7)
- added a new 'double relay' set-up for main power and fuel
- added an add'l fuse panel to handle the MSD, fuel pump,
injectors, megasquirt, and main power (term. 30)
That's the story so far.
GG
'82 Calif Vanagon Westy - going Megasquirt
Calgary, Alberta
-
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