Classic Audi Technical Mech/Tech Electrical problems » Audi 80 1994 immobiliser query

Reply
 
Thread Tools Display Modes
Old 07-08-16, 06:36 PM   #11
rangerovering
Grown up member
 
rangerovering's Avatar
 
Join Date: Aug 2016
Location: Lanark
Posts: 138
Default

The plot thickens.....

Had two replies from immobiliser companies. One from Autotronics in Leicester who seem to have extensive options for Audi immobilisers, new keys etc. They say if I send the immobiliser box they can make a new transponder chip for me. 120 plus vat.

Another company CarKeyHelp has said that the transponders didn't come in until mid '95.....

My cables for VagCom have arrived I am going to plug the old girl in and see what she can tell me


Sent from my iPhone using Tapatalk
rangerovering is online now   Reply With Quote
Old 08-08-16, 07:10 AM   #12
Gib
Grown up member
 
Join Date: Jul 2007
Location: Abingdon in a boat about 15 foot above the roof of my house
Posts: 215
Default

Just build an emulator box using the box you have and an ebay chip at 1.99 and 5 mins of soldering. Well documented issue with proven solution.
If you want to reinstall the setup just hunt in scrap yards at your leisure for megmos ID13 keys there are loads about and then recode to them you have vagcom so no problem.
Gib is offline   Reply With Quote
Old 09-08-16, 11:54 AM   #13
rangerovering
Grown up member
 
rangerovering's Avatar
 
Join Date: Aug 2016
Location: Lanark
Posts: 138
Default

Thanks Gib I've had a look at that.

Did some more work last night. Removed all the injectors and checked they were flowing fuel, which they were.

Did some checks on the immobiliser. Locked the car and the red triangle in the fog light switch flashes several time quickly then settles to a steady flash every second or so. Unlocking the car the light stops flashing.
If I remove fuse 4 I can start the car without fuse 19 in place.

Hoping I can get vag com workin tonight, trawled through loads of guides on setting the com ports etc but it still won't pair with the lead


Sent from my iPhone using Tapatalk
rangerovering is online now   Reply With Quote
Old 09-08-16, 12:43 PM   #14
Gib
Grown up member
 
Join Date: Jul 2007
Location: Abingdon in a boat about 15 foot above the roof of my house
Posts: 215
Default

The speed of the flash generally indicates if you have turned the microwave on / off.
Gib is offline   Reply With Quote
Old 10-08-16, 03:34 AM   #15
Megsy
Grown up member
Classic Audi Club Member
 
Join Date: Feb 2008
Location: cheshire
Posts: 228
Default

I'm pretty sure the old immobilizers where wired through the central locking pump on that model and not the ecu. If so I don't think vag come will read it.
Does it immobilizer the starter, ignition or fuel pump?
If it's the starter I'd look at bypassing it and fitting an after market cat 2 immobilizer or decent alarm .
Megsy is offline   Reply With Quote
Old 10-08-16, 06:59 AM   #16
Gib
Grown up member
 
Join Date: Jul 2007
Location: Abingdon in a boat about 15 foot above the roof of my house
Posts: 215
Default

Vag-Com reads the Central locking pump.
Gib is offline   Reply With Quote
Old 10-08-16, 07:01 AM   #17
rangerovering
Grown up member
 
rangerovering's Avatar
 
Join Date: Aug 2016
Location: Lanark
Posts: 138
Default

Thanks Megsy. That would make sense if it's through the pump.

Got VagCom to connect las night the only stored fault code was for the crank sensor, whether or not it's from when I unplugged it I don't know, it wasn't logging it again. New one on order.


It immobilises the fuel pump and the starter at the moment, although sometimes the fuel pump will prime with fuse 19 in place, other times it doesn't



Sent from my iPhone using Tapatalk
rangerovering is online now   Reply With Quote
Old 10-08-16, 07:07 AM   #18
Megsy
Grown up member
Classic Audi Club Member
 
Join Date: Feb 2008
Location: cheshire
Posts: 228
Default

Quote:
Originally Posted by Gib View Post
Vag-Com reads the Central locking pump.
Cars to old to reading any central locking codes
Megsy is offline   Reply With Quote
Old 07-09-16, 09:25 AM   #19
rangerovering
Grown up member
 
rangerovering's Avatar
 
Join Date: Aug 2016
Location: Lanark
Posts: 138
Default

As Megsy says VagCom doesn't recognise there being a central locking function as part of its diagnostics on this car.

Does anyone have a wiring diagram for this model of the circuit powered by fuse 19? If the problem is caused by the pickup in the door lock it should be fixable?

Also, if this car doesnt have an immobiliser then is it difficult to swap the ECU? Can VagCom do any coding work if needed?

Cheers
rangerovering is online now   Reply With Quote
Old 07-09-16, 06:24 PM   #20
mikes2
Senior Member
Classic Audi Club Member
 
Join Date: Nov 2007
Location: Polmont
Posts: 1,465
Default

this may help

http://s2-audi.co.uk/workshop/schema...ng/page3_l.png
__________________
1991 90 quattro 20v sport
1993 S2 estate
mikes2 is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT. The time now is 11:40 AM.

Powered by vBulletin®
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright ©2007-2008 Classic Audi | Site by Roadrunna