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-   -   Digifant I aka OBD1 VW. (https://www.homemadeturbo.com/engine-management-10/digifant-i-aka-obd1-vw-100193/)

Tom-Guy 03-02-2009 04:32 PM

Digifant I aka OBD1 VW.
 
http://i256.photobucket.com/albums/h...ORRICHARD2.png


I'm fiddling a car next week. Will post up completed .xdf when appropriate.

SpankedYA! 03-02-2009 06:06 PM

Re: Digifant I aka OBD1 VW.
 
Wow, nice. Didn't know that was possible with Tuner Pro.

Tom-Guy 03-02-2009 07:26 PM

Re: Digifant I aka OBD1 VW.
 
Tunerpro rocks. It should be possible for me to reroute the built in ALDL datalogger to work with the Digi I stuff, Mark says one other guy has done it and he'll share as much as he can if the other guy clears it (IP type stuff). The OBD1 VW stuff is easier than Honda, since they use an off the shelf MCU with common software tools. I should really be able to get something done without spending too too long ------- with it.

Emperor 03-02-2009 07:46 PM

Re: Digifant I aka OBD1 VW.
 
digifant is VW right??

i only know it from those guys ???

Hitchhikkr 03-02-2009 07:50 PM

Re: Digifant I aka OBD1 VW.
 

Originally Posted by Joseph Davis
Tunerpro rocks. It should be possible for me to reroute the built in ALDL datalogger to work with the Digi I stuff, Mark says one other guy has done it and he'll share as much as he can if the other guy clears it (IP type stuff). The OBD1 VW stuff is easier than Honda, since they use an off the shelf MCU with common software tools. I should really be able to get something done without spending too too long ------- with it.

Dont forget about the base timing. Thats why half the 87-92 vw's on the road run like crap. You gotta pull the connector to the blue coolant temp sensor, then run the engine up to 2000-2500 rpm, and set base at 6 degrees btdc.

Its weird setup. I kinda dont like the tps switch thing though. Your either idle or WOT no inbetween. Have fun with tip-in adjustment.

Tom-Guy 03-02-2009 08:51 PM

Re: Digifant I aka OBD1 VW.
 
There is a delta-MAP table. Ari's Miata didn't have a TPS either, we use delta-MAP which the MS guys refer to MAPdot. it works surprisingly well.

Hitchhikkr 03-02-2009 09:04 PM

Re: Digifant I aka OBD1 VW.
 
Funny you made this thread. A guy at work offered me a golf today for dirt money. Gonna look at it this week.

Chris Harris 03-02-2009 11:36 PM

Re: Digifant I aka OBD1 VW.
 
Good stuff, how long will this phase last? O0

jinxy 03-02-2009 11:58 PM

Re: Digifant I aka OBD1 VW.
 
What are you going to do about the AFM?

Hitchhikkr 03-03-2009 12:15 AM

Re: Digifant I aka OBD1 VW.
 

Originally Posted by rawr
What are you going to do about the AFM?

You mean the Flowzilla? 8)

Tom-Guy 03-03-2009 01:04 AM

Re: Digifant I aka OBD1 VW.
 

Originally Posted by rawr
What are you going to do about the AFM?

Easy, I'll act like the car doesn't have one.

VWralley 03-03-2009 01:54 PM

Re: Digifant I aka OBD1 VW.
 
this is the first i've seen of this can you tell me more about it?

the problem with digi1 is always been you have to deal with chip tuning which is a pain in the ass for custom setups...this looks pretty sweet!

Tom-Guy 03-03-2009 02:38 PM

Re: Digifant I aka OBD1 VW.
 
I see it the other way around, chip tuning > ECU flashing as well as a lot of standalones with pitiful transfer rates. If you have a Moates Ostrich it's a LOT easier than ECU flashing; you sacrifice 10-30 minutes to get the ECU out and the gear hooked up, but your ability to make instantaneous and seamless changes while the car is operating more than makes up for the setup time as well as the subjective tuning experience - instead of waiting you just simply tune. A vehicle you flash - you have to flash - can take a stupid amount of time whereas something equipped with an Ostrich is stupid easy and takes under a minute unless you have to fool with mechanical aspects like adjusting the TB... which you still have to do with a flash vehicle.


o/~ Lalalalalalalalaa o/~

http://i256.photobucket.com/albums/h...0/Photo_03.jpg


Best thing about (some of) the Digifant I ECUs is they have 25 pins (not all used) which is less than any EFI Honduh offering. Even the other variants have only 38 pins, which is less than any two plugs of any Honda ECU. It's nothing sphisticated, sure, but it gets the job done and is going to be dead simple to ---- with on a bench *UNLIKE* a Honda/etc that needs a full engine sim setup. I can use the 0-5v 1Khz calibration signal on my scope to simulate the dead nuts simple 4 tooth Hall pickup in the VW dist, and ---- around with the unit with impunity. I've been wanting to ---- around with an ECU on the elementary level for a while, but lacked all required skills/equipment, and this is an excellent project for me. Everything that's hard to do (figure out how to set an Ostrich v2.0 up for map trace so I can monitor what the MCU does) will prepare me for most complex ECUs while keeping everything associated with the Digi-I ECU itself practically hassle-free.

HomeMadeTurboz 03-03-2009 03:43 PM

Re: Digifant I aka OBD1 VW.
 
Intresting

juce 03-03-2009 08:58 PM

Re: Digifant I aka OBD1 VW.
 
JD what did/do you study in school?

Tom-Guy 03-03-2009 09:10 PM

Re: Digifant I aka OBD1 VW.
 

Originally Posted by juce
JD what did/do you study in school?

I started out as an ME, decided I would rather get my dick sucked by girls my own age than be around older girls who froke out when they found out how old I was, so I dropped out of school and did a looooooot of drugs from '91-95. Then I enrolled and finished autotech and then machining programs and worked in a shop until '98, started doing a lot of drugs (and my gf's sister, the gf's sister's gf, and everybody else's gf) until '00-01 at which time I just drank a lot and post-----d and chipped ECUs while taking networking and welding classes until I decided that ---- was totally retarded (the networking, I have a community college 1 yr diploma in basic welding, whoopty) and I started on EE stuff. Then dropped out three semesters in, started tuning cars maybe '02-03, became an alcoholic and swore off serious relationships. Enrolled in EE again, am most the way through, and have somehow gotten shacked up with a girl 13 years younger than me.




Also, for the lols:

http://forums.vwvortex.com/zerothread?id=4226894

HomeMadeTurboz 03-03-2009 09:58 PM

Re: Digifant I aka OBD1 VW.
 

Originally Posted by Joseph Davis

I cross posted it here http://forums.vwvortex.com/zerothread?id=4277130 and http://forums.vwvortex.com/zerothread?id=4277127

Just to see if there could be more lols to be had.

jinxy 03-03-2009 10:57 PM

Re: Digifant I aka OBD1 VW.
 

Originally Posted by Joseph Davis
I started out as an ME, decided I would rather get my dick sucked by girls my own age than be around older girls who froke out when they found out how old I was, so I dropped out of school and did a looooooot of drugs from '91-95. Then I enrolled and finished autotech and then machining programs and worked in a shop until '98, started doing a lot of drugs (and my gf's sister, the gf's sister's gf, and everybody else's gf) until '00-01 at which time I just drank a lot and post-----d and chipped ECUs while taking networking and welding classes until I decided that ---- was totally retarded (the networking, I have a community college 1 yr diploma in basic welding, whoopty) and I started on EE stuff. Then dropped out three semesters in, started tuning cars maybe '02-03, became an alcoholic and swore off serious relationships. Enrolled in EE again, am most the way through, and have somehow gotten shacked up with a girl 13 years younger than me.




Also, for the lols:

http://forums.vwvortex.com/zerothread?id=4226894


lol you said froke again.




Tom-Guy 03-03-2009 11:12 PM

Re: Digifant I aka OBD1 VW.
 
Try this one, since you probably have an account there. http://forums.generationdub.com/showthread.php?t=26511

I would, but I'm scared to sign up for another account on a VW forum, it's all I can do to resist abducting little boys as it is.

Tom-Guy 03-04-2009 02:25 AM

Re: Digifant I aka OBD1 VW.
 
http://img50.imageshack.us/img50/286/getyodasmon.png

NIGn0g 03-04-2009 10:58 AM

Re: Digifant I aka OBD1 VW.
 
Looks ugly :7

I can see a firefox window where the title is "Disease"; I think you got one.

:P

ifly87 03-04-2009 11:47 AM

Re: Digifant I aka OBD1 VW.
 
I have fucked around with the chips in those ecu's before they are such a pain in the ass piece's of ----. it would almolst be worth it if the cars were any good. (corrado) This is very interesting though, you are actually using tuner pro?????? is it working and wtf...just wtf.

slappynuts 03-04-2009 12:51 PM

Re: Digifant I aka OBD1 VW.
 
Did you make the defenition file for TP? very impressive. I did some OBD1 motronic tuning a few years ago and tried to help other do so but most of them were too stupid to do so.

Tom-Guy 03-04-2009 01:31 PM

Re: Digifant I aka OBD1 VW.
 

Originally Posted by slappynuts
Did you make the defenition file for TP? very impressive.

It's data entry. You find women's work impressive?


Originally Posted by slappynuts
I did some OBD1 motronic tuning a few years ago and tried to help other do so but most of them were too stupid to do so.

lol wut?

slappynuts 03-04-2009 07:38 PM

Re: Digifant I aka OBD1 VW.
 
Wait. huh? That looks like tunerpro on the top of the page. Is that definition file for a digifant ecu? ???

I guess I was just saying that I was impressed if you came up with that definition file on your own. Thats all I guess.

Hitchhikkr 03-04-2009 08:26 PM

Re: Digifant I aka OBD1 VW.
 

Originally Posted by slappynuts
I guess I was just saying that I was impressed if you came up with that definition file on your own. Thats all I guess.

I could have done that. This is just busy work for Joseph. :P

VWralley 03-17-2009 01:07 PM


Originally Posted by Joseph Davis (Post 1256948)
I see it the other way around, chip tuning > ECU flashing as well as a lot of standalones with pitiful transfer rates. If you have a Moates Ostrich it's a LOT easier than ECU flashing; you sacrifice 10-30 minutes to get the ECU out and the gear hooked up, but your ability to make instantaneous and seamless changes while the car is operating more than makes up for the setup time as well as the subjective tuning experience - instead of waiting you just simply tune. A vehicle you flash - you have to flash - can take a stupid amount of time whereas something equipped with an Ostrich is stupid easy and takes under a minute unless you have to fool with mechanical aspects like adjusting the TB... which you still have to do with a flash vehicle.

what i more meant was without the ability to hook up a device like you are describing is you are basically stuck with two options. 1) buy a chip, and hope that it works for your engine, which i have found most of the time they are close, but if you stray from what the chip tuners put out, you are SOL or 2) bring it to a place that has the ability to do what you are talking about, which for vw's is very few and far between! i believe there is 2 or 3 chip tuners in the US, and they are all on the east coast.

I definitely need to do some more research on this, as there would be a huge advantage to having this device working here in my area, i already have huge network of guys running this setup on their cars looking for just this type of thing!


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