Will a Digifant II ECU work?

[kayakwesty]

Will a Digifant II ECU work on a 1986-1991 Vanagon ?
_________________
1984 Westy 2.0 Jetta ABA Motor/1.8 head converted to auto tranny, with 180,000 on body, 55K on engine and transmission

B.5.5 Passat Wagen with 30v V6-67000 Miles

DAS AUTO

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http://www.kayakwesty.com

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[Wellington]

What is digifant 11? Any ecu from Vanagon 1996 to 1991 will work.

[tencentlife]

Highly doubtful. The system in Vanagons isn't even Digifant I; it's just Digifant, as best I can gather. I and II are generations removed, having some different inputs, especially the knock sensor but I think there are more. Pin location numbering might be different; they are surely different in total number.

If you could get the wiring diagram for a car using Dig.II, you could compare the pin pattern, and see just where the differences are.

I can promise you that it would not be plug'n'play.

[D Clymer]

No. The pinouts are the same for all the components both systems share, but the Digifant II computer needs a knock sensor input for the ignition portion unlike the Vanagon system which has a programmed ignition advance. Additionally, the idle stabilizer function is integrated into the Digifant II computer, but the Vanagon uses a stand alone idle stabilizer module.

David

[kayakwesty]

Digifant II was used on 85-92 Jetta and Golf's

Digifant I was used on 1986-1991 Vanagons

Digijet was used on 1983-1984 Vanagons

II=2 (two)

I=1 (one)

So back at the ranch

Will a Digifant II ECU work on a Vanagon

Digifart is a Digifart ? Parts are Parts?

(Kinda important to know since they don't make new ECU's and they're were more Jettas made than Vanagons)

Anybody ever swapped one to see if it will run?
_________________
1984 Westy 2.0 Jetta ABA Motor/1.8 head converted to auto tranny, with 180,000 on body, 55K on engine and transmission

B.5.5 Passat Wagen with 30v V6-67000 Miles

DAS AUTO

CHANGE YOUR FUEL LINES!

A post without pictures is useless

http://www.kayakwesty.com

http://www.waldensridgewhitewater.com/

[kayakwesty]

thanks guys !!!!!!!

I love the Samba!!!!!
_________________
1984 Westy 2.0 Jetta ABA Motor/1.8 head converted to auto tranny, with 180,000 on body, 55K on engine and transmission

B.5.5 Passat Wagen with 30v V6-67000 Miles

DAS AUTO

CHANGE YOUR FUEL LINES!

A post without pictures is useless

http://www.kayakwesty.com

http://www.waldensridgewhitewater.com/

[tencentlife]

[joetiger]

My '92 GTI is Digifant I, not Digifant II. Digifant I was sold on California Golf, GTI, and Jetta models in '91 and '92. Different from Vanagon Digifant.
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Joe T.

'86 NAHT Vanagon GL Syncro/ supercharged ABA 2.0 "Pigpen"
'91 Wolfsburg Carat "Barchetta"
'02 Baja-ish Beetle "Bubbles"

"get metaphysical with it. if it's simply a means to get to and from places, it will let you down. if it becomes your zen, it can't fail you." -dabaron

"Still, it's good to be afield."--VWagabond

Justice for Megan: https://linktr.ee/justiceformegantrussell

[bucko]

[kamzcab86]

[crazyvwvanman]

Thanks for the follow up.
Coincidentally? this photo appeared here just now as well, showing a Digifant-I (DF1) label on an 88-91 Vanagon ECU.

Mark

[DanHoug]

[jlrftype7]

While we may not know all the reasons, I guarantee cost control is probably a big one if we only knew what VW might have been saving per tens of thousands producing a given vehicle with the differences.
If they knew they didn't need Knock Sensor feedback, then the wiring harness and sensor get dropped off, and the MAP changes for that ECU.
EPA testing for Emissions into Market affected as well.
Add to what the vehicle might actually be doing, small peppy car driven hard versus tall Van not driven the same way, and possible compression ratio differences and fuel flame burns between the WBX and the IN-Line engines, those too start to come into the equation..

BMW was no different for the 80s- Special ECUs for California market, Federal ECUs different from Cali-
5 series had the 528e with the M20 engine using a stand alone Idle Control System, while the bigger 535 M30 6 cyl engine had the ECU controlling the idle valve from '85 onward. The previous years had both engine sizes running a stand alone idle system in that body, the E-28.
That didn't change until late '87 528e models got a similar Engine Management system like the 325i E-30 3 series, with what BMW people informally called the Super ETA engine.
Gone was the 4500 RPM or so limit of the earlier M20 and systems in a 528e, Super ETA bumped it up to 5000 or 5500 RPM, I forget which. I think Camshaft change and timing change was there too.
BUT, and this is where it gets cute, wasn't as high as the I version engine of the M20, which was like 6500 or near that, with 168 HP. That stayed with the 3 series. So you had a 3 Series 325i pull up to you at a light with more HP and a higher REV limit, but you paid more for your 5 Series 528e....
You had to have the right ECU for all the above, since it was all different- Automatics versus Manual Vehicles mattered too.
God help you with a Grey Market BMW, BMW was kind of fierce in not letting the Euro or 'other parts of the world' spare parts get into the North American Parts Distribution System and Books/Catalogs.

In Europe, it was a different ball game of course.

The EPA and Crash Testing stuff has done some interesting things over the years too to the industry. Land Rover had a model that mounted an A/C compressor hooked up to nothing. They'd already submitted the engine for emissions and crash testing on other models as complete, and the belt part number stayed the same since it went around a compressor like usual, so they popped the A/C compressor onto the Non-A/C model since it allowed them to skip further testing for some requirements, having already done so with the other models.
And no need for a 2nd part number to stock a Non-A/C equipped engine fan belt/serp belt...
Clever owners and dealers would add an actual A/C system onto the compressor since it was already there.
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'68 Westy- my first VW and vehicle/Bus- long gone.- sold it to a traveling Swiss couple....
'67 Type 3 Fastback, my 2nd car- gone
'69 Semi-Auto Stick Shift Beetle-gone
2017 MINI Coopers, our current DDs
‘84 Tin Top - Hilga....Auto

[kamzcab86]