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tencentlife
Samba Member
Joined: May 02, 2006
Posts: 10078
Location: Abiquiu, NM, USA
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 Posted: Sun Sep 29, 2019 11:50 am Post subject: Re: Digifant ProTraining Manual - Revised |
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What year is your Cabrio? If it's K-jet (CIS), the specified change intervals were pretty often, at least at first. Experience showed that, like the early O2 sensor intervals, they were being fairly over-cautious, 60k miles turned out to be quite reasonable for K-jet fuel filters, and O2 sensors tended to work well for even longer. But K-jet should have fuel filter changes more often than L-jet (which include the "Digi's") because there is a much finer and far more expensive element metering fuel, the fuel distributor, where the tolerance on the metering piston is so fine that gasoline at up to 70psi above it doesn't leak thru the tolerance while the piston must move freely in the bore. The tiniest particles will ruin them, and that's almost always how they die. Fuel and air filtration in K-jets needs to be nearly perfect. K-jets were the first systems where we saw the big canister fuel filters appear, but it seems they just started using them across the board, maybe because even though since injectors may pass small particles, as they do the nozzles do get eroded.
_________________
Shop for unique Vanagon accessories at the Vanistan shop:
https://intrepidoverland.com/vanistan/
Please don't PM here, I will not reply.
Experience is kryptonite to doctrine. |
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RawUmber
Samba Member
Joined: June 23, 2019
Posts: 223
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| Posted: Mon Sep 30, 2019 9:16 am Post subject: Re: Digifant ProTraining Manual - Revised |
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| crazyvwvanman wrote: |
| Here is an old post to a different forum from someone who said he read and cleared codes from 022D ECUs. |
| Craig C Forney from Vanagon Mailing List <[email protected]> circa 2014 wrote: |
| If you hook up a light like the 88-89 wiring diagram in the Bentley manual shows, you can clear the codes by grounding the pin signal pin to the ECU when you turn on the key. But you have to replicate the 88-89 wiring, including the "special" 5-pin relay in the engine compartment. By the way, if you ground the wrong pin, you can fry your ECU. |
Since trouble code clearing happens during key on, and the special relay circuit (presumably) has to do w/ a delayed power off, I don't think the relay circuit matters. Regardless, I monitored the pin23 related processor pin during an attempted code clearing procedure, and it acted indifferently.
| kamzcab86 wrote: |
| The fact that the majority of the '88-'89 vans don't even have a CEL in the dash means, IMHO, that it's not worth risk frying the ECU trying to pull & clearing (mostly useless) codes out of it. |
Without the ability to clear codes, I agree that it's fruitless. However, if we were able to, I think it would be useful to some 022D owners (eg, 'oh, my AFM is acting up', 'my O2 sensor is acting up', etc). Adding a simple Check Engine Light (CEL) LED to the dash and a button to manipulate GND for coaxing out the trouble codes might be a reasonable project for some people. Done right, it wouldn't endanger the ECU. VW/Bosch implemented this circuit in many other vehicles of similar vintage, after all. But the 'if' is the hold up. |
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[email protected]
Samba Member
Joined: February 09, 2019
Posts: 8
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| Posted: Tue Oct 01, 2019 9:57 am Post subject: Re: Digifant ProTraining Manual - Revised |
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great stuff!!!
anyone know what happens inside the idle stabilizer control unit? |
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RawUmber
Samba Member
Joined: June 23, 2019
Posts: 223
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| Posted: Mon Oct 14, 2019 5:32 pm Post subject: Re: Digifant ProTraining Manual - Revised |
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I found a way to clear the Diagnostic Trouble Codes (DTCs) from the VW/Bosch 022D ECU. It's a bit inconvenient, but works consistently on the few ECUs that I've tried (regardless of EPROM version). Apparently, the coolant temperature sensor needs to be disconnected!
YMMV/proceed at your own risk/etc...
To clear DTCs on a Vanagon 022D ECU:
1. With key off, disconnect Coolant Temperature Sensor from ECU.
2. Ground ECU pin20 as you key on, keeping it grounded at least 4s before releasing. It should start blinking out DTC 4444, indicating 'no faults'.
3. ..put it back together: Key off, reconnect Coolant Temperature Sensor.
I'd like a solution that doesn't require unplugging anything, but this beats nothing. |
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dabaron
Samba Member
Joined: June 21, 2018
Posts: 2561
Location: Philly, mang
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| Posted: Mon Oct 14, 2019 5:39 pm Post subject: Re: Digifant ProTraining Manual - Revised |
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| RawUmber wrote: |
I'd like a solution that doesn't require unplugging anything, but this beats nothing. |
run a switched line from the coolant sensor wire to ground. flick the LABELED switch to do the reset. add in some transient protection, like a diode and/or RC filter, mix to taste. bob's your uncle.
_________________
1991 Vanagon GL Camper
i had no idea i wanted to be a mechanic
"burnin oil and cookin coils" -- Destructo
BiWerks Design, LLC |
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RawUmber
Samba Member
Joined: June 23, 2019
Posts: 223
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| Posted: Mon Oct 14, 2019 7:21 pm Post subject: Re: Digifant ProTraining Manual - Revised |
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| dabaron wrote: |
| run a switched line from the coolant sensor wire to ground |
Apologies for the terse instructions, they could be improved upon.
Regarding the Coolant Temperature Sensor and resetting.. Another way of saying it is: ECU pin10 (which the coolant temperature sensor attaches to) needs to float (ie, effectively nothing connected to the wire). So for your switch idea, it would just need to open the coolant temperature sensor wire (eg, SPST). It could happen near the ECU or near the sensor, all the same.
The ECU pin20 is the OBD/MAL/CEL pin. It's the one that gets manipulated with ground and blinks out the codes.
I tried to avoid disconnecting the temperature sensor altogether by attempting to reset DTCs with a cold engine (high resistance) or a hot engine (low resistance), but still no go.
I'd like a solution that doesn't require modifying the harness or leaving the driver's seat (like VW's original plan). Needing to disconnect the coolant temp sensor to reset DTCs is a head scratcher. Did they really intend to make it that inconvenient, or is there another way? |
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VdubVanner
Samba Member
Joined: August 03, 2017
Posts: 734
Location: Cowtown AB
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| Posted: Wed Oct 16, 2019 3:30 pm Post subject: Re: Digifant ProTraining Manual - Revised |
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Thanks Kam!
I stocked up on one of the last remaining 40A 5-pin relays in case my '89 runs into the same problem as your parents' van did.
_________________
"Fritz", a temperamental and unforgiving 1989 Westy that proudly bears his German flags and status as a member of the exclusive GoWesty Belly Flop Club.
1989 Westy Makeover: GoWesty 2.3L Engine plus plus plus https://www.thesamba.com/vw/forum/viewtopic.php?t=...mp;start=0 |
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SyncroHead 
Samba Member
Joined: May 23, 2005
Posts: 1145
Location: Northern Nevada
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| Posted: Tue Dec 17, 2019 11:26 am Post subject: Re: Digifant ProTraining Manual - Revised |
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| SyncroHead wrote: |
| kamzcab86 wrote: |
| I took the time to reproduce the ProTraining Manual |
This is GREAT! A long while back (ashamed to say how long) I began to reproduce the "Journeys Under Difficult Conditions" manual. VW created this in 1980 and updated it in 1984. Focuses on how to modify and equip your Vanagon or LT for, well, "difficult conditions".
With your inspiration, I'll commit to completing it by Christmas!
Thanks again!
Jim Davis |
Well, this has proved more challenging than I thought and I'll have to break my promise. I have however now located the right resources to complete it!
My new promise: Done by Memorial Day!
Jim
_________________
"A Vanagon? It's not a car or a van. It's a hobby!"
Check out:
www.VANAVATION.com
www.SyncroSafari.org and
www.Vanagons.org
| sphet wrote: |
| I have *no* idea what the previous owner carried in his Westy... angry donkeys? |
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VWagabond
Samba Member
Joined: March 19, 2011
Posts: 272
Location: Charlotte, NC
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| Posted: Wed Dec 18, 2019 10:14 am Post subject: Re: Digifant ProTraining Manual - Revised |
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Looking forward to seeing it when you get it completed.
_________________
The Road Goes Ever On & On……...
VWagabond
87 Camper GL
87 Syncro GL |
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dabaron
Samba Member
Joined: June 21, 2018
Posts: 2561
Location: Philly, mang
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| Posted: Sat Jun 06, 2020 7:57 pm Post subject: Re: Digifant ProTraining Manual - Revised |
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just want to show some love for this revised edition.
this is an amazing resource made more amazing. from helping me sort out hacked up wiring in the Westy to the relay swap in my 90 tin top, i appreciate the time Kamz put into this.
thank you.
_________________
1991 Vanagon GL Camper
i had no idea i wanted to be a mechanic
"burnin oil and cookin coils" -- Destructo
BiWerks Design, LLC |
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natejohn
Samba Member
Joined: February 20, 2020
Posts: 57
Location: Vancouver, BC
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| Posted: Sat Jun 06, 2020 8:46 pm Post subject: Re: Digifant ProTraining Manual - Revised |
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| dabaron wrote: |
just want to show some love for this revised edition.
this is an amazing resource made more amazing. from helping me sort out hacked up wiring in the Westy to the relay swap in my 90 tin top, i appreciate the time Kamz put into this.
thank you. |
And thank YOU for doing that, because I'd never seen it and it's now part of my library.
Awesome work.
_________________
1990 Vanagon Westfalia |
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kamzcab86
Samba Moderator
Joined: July 26, 2008
Posts: 7925
Location: Arizona
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| Posted: Sat Jun 06, 2020 9:19 pm Post subject: Re: Digifant ProTraining Manual - Revised |
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🤗❤
_________________
~Kamz 
1986 Cabriolet: www.Cabby-Info.com
 1990 Vanagon Westfalia: Old Blue's Blog
2016 Golf GTI S
"Real knowledge is to know the extent of one's ignorance." - 孔子 |
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dbeierl
Samba Member
Joined: April 22, 2009
Posts: 164
Location: Providence, Rhode Island, USA
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| Posted: Mon May 29, 2023 8:16 pm Post subject: Re: Digifant ProTraining Manual - Revised |
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Kamz, your host site is showing as a hostile site according to Chrome, and the pdf files aren't loading. |
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BulliBill
Samba Member
Joined: July 09, 2004
Posts: 4573
Location: St Charles, MO
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| Posted: Tue May 30, 2023 8:19 am Post subject: Re: Digifant ProTraining Manual - Revised |
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X2 on the hostile site (Phishing) warning...
Bill
_________________
I'm looking for these license plate frames for my fleet:
Coeur D'Alene - Lake Shore Volkswagen
Mission VW - San Fernando
Thornton VW - Stockton
Thanks for any help! |
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kamzcab86
Samba Moderator
Joined: July 26, 2008
Posts: 7925
Location: Arizona
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dabaron
Samba Member
Joined: June 21, 2018
Posts: 2561
Location: Philly, mang
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| Posted: Tue May 30, 2023 10:56 am Post subject: Re: Digifant ProTraining Manual - Revised |
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the cert is either invalid or expired or the site has been reported as deceptive. i attempted to access the site using Firefox and Edge in Windows, both failed to connect via https. on my cell using Safari, it let me know the site was unsecure and possibly a threat but eventually let me proceed.
_________________
1991 Vanagon GL Camper
i had no idea i wanted to be a mechanic
"burnin oil and cookin coils" -- Destructo
BiWerks Design, LLC |
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tjet
Samba Member
Joined: June 10, 2014
Posts: 3533
Location: CA & NM
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| Posted: Tue May 30, 2023 12:21 pm Post subject: Re: Digifant ProTraining Manual - Revised |
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kamzcab86
Samba Moderator
Joined: July 26, 2008
Posts: 7925
Location: Arizona
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| Posted: Tue May 30, 2023 12:55 pm Post subject: Re: Digifant ProTraining Manual - Revised |
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Well, damn. 
Currently on the road, but will look into the issue when I get home.
Thanks for the heads-up. 🍺
_________________
~Kamz
1986 Cabriolet: www.Cabby-Info.com
1990 Vanagon Westfalia: Old Blue's Blog
2016 Golf GTI S
"Real knowledge is to know the extent of one's ignorance." - 孔子 |
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dbeierl
Samba Member
Joined: April 22, 2009
Posts: 164
Location: Providence, Rhode Island, USA
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| Posted: Tue May 30, 2023 2:15 pm Post subject: Re: Digifant ProTraining Manual - Revised |
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| kamzcab86 wrote: |
Well, damn.
Currently on the road, but will look into the issue when I get home.
Thanks for the heads-up. 🍺 |
My pleasure and thank *you*. I can get to the links by blowing through the warnings, but all I get for either one is a pdf-looking page with no content.
Yrs,
David |
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kamzcab86
Samba Moderator
Joined: July 26, 2008
Posts: 7925
Location: Arizona
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| Posted: Fri Jun 02, 2023 7:01 pm Post subject: Re: Digifant ProTraining Manual - Revised |
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| kamzcab86 wrote: |
| Currently on the road, but will look into the issue when I get home. |
Looked into the issue on Tuesday upon returning home and it was due two things: one certificate was excluded from auto-verification (fixed), another certificate could not be verified because the host fouled up the mail DNS settings, something I don't even use (I use a third party for email). I removed the auto-generated mail folder from the server, contacted Google with an explanation, and heard back today: All is dandy; warnings removed. 
_________________
~Kamz
1986 Cabriolet: www.Cabby-Info.com
1990 Vanagon Westfalia: Old Blue's Blog
2016 Golf GTI S
"Real knowledge is to know the extent of one's ignorance." - 孔子 |
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