93 OBD Codes

Post all your engine questions and issues here and get help from the members

Moderators: kamzcab86, CalAltaDubber

Post Reply
boschbabe
Posts: 112
Joined: Sun Jun 30, 2013 11:35 am
What year is your cabby?: 1993
Do you own a Cabriolet?: Yes

93 OBD Codes

Post by boschbabe » Mon Jan 06, 2014 4:00 pm

According to my Haynes manual, the only Digifant cars that have an onboard diagnostic setup are cars from Calif. Is this correct? Is there a way to pull up codes without a scanner?

User avatar
Briano1234
Whats that smell?
Posts: 3987
Joined: Mon Mar 21, 2005 5:45 am
What year is your cabby?: 1992
Do you own a Cabriolet?: No
Location: Duluth, Ga
Contact:

Re: 93 OBD Codes

Post by Briano1234 » Mon Jan 06, 2014 5:13 pm

93 Cabbies have digifant2 if your "5th" digit is a "b" (California is "c") then you can't get the codes.

From your other post if the timing is a tooth off, that can be your whole issue.
As well as the FPR.

The CTS sensor can cause no start COLD no Start Hot, and Crappy running.
As it is but a 12dollar part at napa with the o-ring I say just replace it.
Briano

Yes as matter of fact, I have the Luck o'the Irish...everything I touch turns to fertilizer of the bovine variety.
You can lead a user to a link, but you can't make him Click.... :screwy:

boschbabe
Posts: 112
Joined: Sun Jun 30, 2013 11:35 am
What year is your cabby?: 1993
Do you own a Cabriolet?: Yes

Re: 93 OBD Codes

Post by boschbabe » Mon Jan 06, 2014 8:03 pm

So if some electrical component is not sending the right stuff to the computer, there is no indicator other than driveability issues?

User avatar
Briano1234
Whats that smell?
Posts: 3987
Joined: Mon Mar 21, 2005 5:45 am
What year is your cabby?: 1992
Do you own a Cabriolet?: No
Location: Duluth, Ga
Contact:

Re: 93 OBD Codes

Post by Briano1234 » Mon Jan 06, 2014 10:03 pm

boschbabe wrote:So if some electrical component is not sending the right stuff to the computer, there is no indicator other than driveability issues?

Yep....

If it died, then you need to verify and set the timing statically
http://reflectionsandshadows.com/cabby/static-digi.html

You will need to verify the hall signal generator is working.
One trick I learned is to remove the ground off the battery post, and touch the ground cable to the Positive for about 30 seconds. This will tend to reset the ECU.
Briano

Yes as matter of fact, I have the Luck o'the Irish...everything I touch turns to fertilizer of the bovine variety.
You can lead a user to a link, but you can't make him Click.... :screwy:

User avatar
Calimus
Grand High PooBah
Posts: 2887
Joined: Mon Sep 02, 2002 11:40 pm
What year is your cabby?: 1989
Do you own a Cabriolet?: Yes
Location: Cartersville, Ga
Contact:

Re: 93 OBD Codes

Post by Calimus » Wed Jan 08, 2014 8:56 am

Ok, here's a late Xmas gift. Burn that Haynes manual and download this digital copy of the Bentley manual here - http://www.toplessrabbit.com/files/VW_C ... IROCCO.pdf

Then, do yourself a favor and purchase an actual copy so that you have something to you can use while your poking around in the engine bay. After that, getting the codes from those early ODB cars is like pulling teeth. You can screw around with trying to make the CEL flash x-times or find an old scanner someone might still have in a junk box or whatever. The thing is, these cars are still just this side of simple enough that you can track the issue down. While there are sensors, there are very few, which makes things a bit easier to deal with. There's not 100+ like a modern car.

So, please download that copy of the Bentley (it's about 352mb of PDF file) and have a look. It's much better then the manual you are using.
12' A6 3.0T Prestige
05' Yamaha FJR1300
02' Honda VTX 1800C

boschbabe
Posts: 112
Joined: Sun Jun 30, 2013 11:35 am
What year is your cabby?: 1993
Do you own a Cabriolet?: Yes

Re: 93 OBD Codes

Post by boschbabe » Wed Jan 08, 2014 4:33 pm

Thanks for the link. I was looking at the section on cam timing and noticed that it doesn't show the tranny marks. It only shows the crank pulley mark lining up with the intermediate gear which requires pulling the pulley and bottom cover. It also says that the marks on the crank pulley and cover are for 16V engines only. I ran into trouble lining up these three on our auto car. They were all slightly off (half-tooth) from each other including the two on the crankshaft!

boschbabe
Posts: 112
Joined: Sun Jun 30, 2013 11:35 am
What year is your cabby?: 1993
Do you own a Cabriolet?: Yes

Re: 93 OBD Codes

Post by boschbabe » Wed Jan 08, 2014 5:49 pm

The reason I was wondering about OBD codes is because the car doesn't run at all and it would give me a place to start. I thought they were federally mandated.

User avatar
Calimus
Grand High PooBah
Posts: 2887
Joined: Mon Sep 02, 2002 11:40 pm
What year is your cabby?: 1989
Do you own a Cabriolet?: Yes
Location: Cartersville, Ga
Contact:

Re: 93 OBD Codes

Post by Calimus » Thu Jan 09, 2014 4:22 pm

They were on domestic back then, but I don't think they were on imports till 98'
12' A6 3.0T Prestige
05' Yamaha FJR1300
02' Honda VTX 1800C

User avatar
Briano1234
Whats that smell?
Posts: 3987
Joined: Mon Mar 21, 2005 5:45 am
What year is your cabby?: 1992
Do you own a Cabriolet?: No
Location: Duluth, Ga
Contact:

Re: 93 OBD Codes

Post by Briano1234 » Thu Jan 09, 2014 7:03 pm

Calimus wrote:They were on domestic back then, but I don't think they were on imports till 98'
96 mandate due to emissions standards.
is what I thought.
Briano

Yes as matter of fact, I have the Luck o'the Irish...everything I touch turns to fertilizer of the bovine variety.
You can lead a user to a link, but you can't make him Click.... :screwy:

User avatar
Calimus
Grand High PooBah
Posts: 2887
Joined: Mon Sep 02, 2002 11:40 pm
What year is your cabby?: 1989
Do you own a Cabriolet?: Yes
Location: Cartersville, Ga
Contact:

Re: 93 OBD Codes

Post by Calimus » Thu Jan 09, 2014 7:05 pm

You may very well be right Sir.
12' A6 3.0T Prestige
05' Yamaha FJR1300
02' Honda VTX 1800C

boschbabe
Posts: 112
Joined: Sun Jun 30, 2013 11:35 am
What year is your cabby?: 1993
Do you own a Cabriolet?: Yes

Re: 93 OBD Codes

Post by boschbabe » Fri Jan 10, 2014 4:46 pm

My '93 BMW has OBD. You just have to hit the gas pedal 10 times to pull the codes.

User avatar
kamzcab86
Queen and Popette of Cabbydom
Posts: 1277
Joined: Wed Sep 11, 2002 3:54 pm
What year is your cabby?: 1986
Location: Arizona
Contact:

Re: 93 OBD Codes

Post by kamzcab86 » Mon Jan 13, 2014 2:15 pm

Does the car have this in the dash:

Image :?:

Does the car have a "C" in digit #5 in the VIN?

No: The car is Digifant II and does NOT have OBD I.

Yes: The car is Digifant I, originally sold in California, and DOES have OBD I.

Go to http://www.cabby-info.com/gauges.htm#Lights , scroll down to Check Engine Light for further info.

And, to clarify, the USA federal government required all cars from 1996 model year onward to have OBD II. Prior to 1996, the annoying state of California mandated that all 1991 model year and newer vehicles originally sold in California have OBD capability, hence, the 1991-1993 California-sold Cabriolets having Digifant I and OBD I. To pull codes in these vehicles requires an OBD I scanner, or a jumper wire.

:beer:

User avatar
Calimus
Grand High PooBah
Posts: 2887
Joined: Mon Sep 02, 2002 11:40 pm
What year is your cabby?: 1989
Do you own a Cabriolet?: Yes
Location: Cartersville, Ga
Contact:

Re: 93 OBD Codes

Post by Calimus » Tue Jan 14, 2014 4:23 pm

And there is the definitive word right there. Thanks Kammy!
12' A6 3.0T Prestige
05' Yamaha FJR1300
02' Honda VTX 1800C

boschbabe
Posts: 112
Joined: Sun Jun 30, 2013 11:35 am
What year is your cabby?: 1993
Do you own a Cabriolet?: Yes

Re: 93 OBD Codes

Post by boschbabe » Tue Jan 14, 2014 5:34 pm

It's a non-Cali model. I wish I had OBD1. It doesn't hurt to have another tool in my box. I thought VW was gizmo crazy so it surprises me that OBD was omitted. Even my carbed '89 Festiva has it.

Post Reply