VW/Audi/Seat/Skoda tdi help available

[greg123]

Hi Guys,

What a great forum. Hope it stays around, just found it. If anyone has any VW/Audi TDi questions please feel free, that's what I do for bread and butter.

Good luck guys,
Greg

[huzzen27]

Hi, when i offthe immobilizer of skoda octavia tdi,edc15vm+ many problems occur after the immobilizer off like many lights remains on,on the dashboard cluster and it does not erase through the scanner also,and cars does not drive smooth as before is this connected to immobilizer or it has to be solved other way,please help regarding this,regards -Huzefaaaaaa.
Hi Guys,

What a great forum. Hope it stays around, just found it. If anyone has any VW/Audi TDi questions please feel free, that's what I do for bread and butter.

Good luck guys,
Greg

[greg123]

I don't really understand the question. THe immobilizer is built into dash (instruments) and the only light it relates to is the immobliser light, an orange 'key' symbol.

If the immobilizer is active, you can't drive at all!

What exactly did you do and can you paste a full fault code scan of the car please.

Greg.


Hi, when i offthe immobilizer of skoda octavia tdi,edc15vm+ many problems occur after the immobilizer off like many lights remains on,on the dashboard cluster and it does not erase through the scanner also,and cars does not drive smooth as before is this connected to immobilizer or it has to be solved other way,please help regarding this,regards -Huzefaaaaaa.

[boorawchick]

Here (http://www.digital-kaos.co.uk/forums/f68/regarding-reaction-immo-off-skoda-octavia-edc15vm-zdiesel-45191/)
But some wierd fault-codes...

[teerak2uk]

what he means is he has disabled the immobiliser and now he has the warning light illuminated

[greg123]

Disable? You can only do that by flashing the firmware with a hacked version on VAG IMMO systems so I am not sure he did that.

If it's got temp sensor and other errors, have you done the standard step of seeing if it's the old style failig black temp sensor and if so put a new green one in and look at the temp sensor in measuring blocks to see if you are getting signals in both instruments and engine correctly as it warms up?

What exactly did you do at the time the problem occured? Those fault codes are not that strange, presuming the parts indicated are actually faulty. May be worth going to adaptation 00 and resetting the instrumetns as well as doing a hard power down and checking earths for the relevent looms (disconnect battery, short +/- leads on the car together for a minute).

Greg.

[Liteace]

Hi, I need some help please. I have here a:
96 Golf Tdi engine 1Z chassis 1H
when I plug in the Vag-com and do a scan it will only find the airbag module and nothing else, I have checked the aftermarket radio problem and that’s fine. what could be the problem, why won’t the Vag-com communicate with the rest of the car?


I also have from another car, this:

Thursday,16,July,2009,11:28:37
VAG-COM Version: Release 607.3-UD
Chassis Type: 1J - VW G/J/B Mk4
Scan: 01 02 03 08 15 16 17 19 22 29 35 36 37 39 46 47 55 56 57 75
76

VIN Number: WVWZZZ1J**********
-------------------------------------------------------------------------------
Address 01: Engine
Part No: 06A 906 032 FK
Component: 2.0l 2V AGW 4238
Coding: 00001
Shop #: WSC 00000
WVWZZ********* VW***********

1 Fault Found:
16804 - Catalyst System; Bank 1: Efficiency Below Threshold
P0420 - 35-00 - -
Readiness: 0000 0000

Is this going to be a problem with the 1st (before cat) o2 sensor, the cat, or the 2nd (after cat) o2 sensor. In the measuring blocks of the vag-com what values should I be seeing in there, say for example the cat is faulty would that make the 2nd o2 sensor read wrong and display different values.
Im all new to this diagnostics, when I leant mechanics we were in the Mk3 Escort era, no such thing as OBD so im getting stuck in and trying to learn, so any help would be greatly appreciated

Thanks

[teerak2uk]

Bank 1 is normally the one nearest No. 1 cylinder take a look at the pic below

http://z.about.com/d/autorepair/1/0/8/X/62412288.gif

yours obviously being FRONT OF ENGINE (4 CYL.) picture

[Liteace]

Bank 1 is normally the one nearest No. 1 cylinder take a look at the pic below

http://z.about.com/d/autorepair/1/0/8/X/62412288.gif

yours obviously being FRONT OF ENGINE (4 CYL.) picture

So the blue dots are the o2's and the grey square are the cats ? So on, for example 4.9L we have HO2S 1 on bank 1 HO2S 2 on bank 1 & HO2S 1 on bank 2 ???

[teerak2uk]

well i dont think you car will have that engine in but it`s prob a straight 6 cyl engine


So the blue dots are the o2's and the grey square are the cats ? Yes


So on, for example 4.9L we have HO2S 1 on bank 1 HO2S 2 on bank 1 & HO2S 1 on bank 2 ???

11 = bank 1 probe 1
21 = bank 2 prob3 1
12 = bank 2 probe 2

probe 1 before cat
probe 2 after cat

i hope this is clearer for you

[Liteace]

well i dont think you car will have that engine in but it`s prob a straight 6 cyl engine


So the blue dots are the o2's and the grey square are the cats ? Yes


So on, for example 4.9L we have HO2S 1 on bank 1 HO2S 2 on bank 1 & HO2S 1 on bank 2 ???

11 = bank 1 probe 1
21 = bank 2 prob3 1
12 = bank 2 probe 2

probe 1 before cat
probe 2 after cat

i hope this is clearer for you

I know it wont have that engine that why i put "for example" Its a 4 cyl engine, ive never seen a 2.0L Golf with a straight 6?? I did understand the pic, does this:

"So on, for example 4.9L we have HO2S 1 on bank 1 HO2S 2 on bank 1 & HO2S 1 on bank 2 ???"

not say the same as this:

11 = bank 1 probe 1
21 = bank 2 prob3 1
12 = bank 2 probe 2

So what your saying is bank 1 is ALWAYS before cat, so there is no poss. chance that bank 2 (after cat) o2 sensor is faulty ??

[teerak2uk]

you wont get a golf with a straight six these pics are not golfs they are genral layout for o2 sensors (lambda probes)






bank1/bank2 probe 1 before cat
bank1/bank2 probe 2 after cat


but funny thing is when i did a check on you P Code i came up with this

[Liteace]

you wont get a golf with a straight six these pics are not golfs they are genral layout for o2 sensors (lambda probes)






bank1/bank2 probe 1 before cat
bank1/bank2 probe 2 after cat


but funny thing is when i did a check on you P Code i came up with this

That is because you are looking at

P0402

the code is

P0420

der

[teerak2uk]

LOL oh yeah have you checked that the cat has not collapsed quite possible on the age of the car if you have then its either wiring to the sensor,probe (before cat) but you can eve have the earthing problems on the ecu etc etc

[Liteace]

LOL oh yeah have you checked that the cat has not collapsed quite possible on the age of the car if you have then its either wiring to the sensor,probe (before cat) but you can eve have the earthing problems on the ecu etc etc

I dont want it to be the cat, there is a poss chance that it is as the car has done 170.000 Klms but a new cat from VW is ?1049 aftermarket cat ?920

[smirnoff_rules]

I dont want it to be the cat, there is a poss chance that it is as the car has done 170.000 Klms but a new cat from VW is ?1049 aftermarket cat ?920

lol where did u get that price ? walker or bosal r about ?120 , in euros about 200

[Liteace]

lol where did u get that price ? walker or bosal r about ?120 , in euros about 200

I got that price from VW's and from Walker, Walker part number 20788 have a look

[Liteace]

Maybe you have price of other cat for Golf, its this one

[teerak2uk]

I dont want it to be the cat, there is a poss chance that it is as the car has done 170.000 Klms but a new cat from VW is ?1049 aftermarket cat ?920


bang it and if it rattles like a bag of spanners then it needs replacement


search ebay prob get one for about ?80

[smirnoff_rules]

VW GOLF V 2.0 TDi 16v CATALYTIC CONVERTER,CAT on eBay (end time 25-Jul-09 00:54:28 BST) (http://cgi.ebay.co.uk/VW-GOLF-V-2-0-TDi-16v-CATALYTIC-CONVERTER-CAT_W0QQitemZ270415033303QQcmdZViewItemQQptZUK_Car sParts_Vehicles_CarParts_SM?hash=item3ef5fdf3d7&_trksid=p3286.c0.m14&_trkparms=65%3A12|66%3A2|39%3A1|72%3A1683|293%3A1| 294%3A50)

[Liteace]

VW GOLF V 2.0 TDi 16v CATALYTIC CONVERTER,CAT on eBay (end time 25-Jul-09 00:54:28 BST) (http://cgi.ebay.co.uk/VW-GOLF-V-2-0-TDi-16v-CATALYTIC-CONVERTER-CAT_W0QQitemZ270415033303QQcmdZViewItemQQptZUK_Car sParts_Vehicles_CarParts_SM?hash=item3ef5fdf3d7&_trksid=p3286.c0.m14&_trkparms=65%3A12|66%3A2|39%3A1|72%3A1683|293%3A1| 294%3A50)

That's for a Tdi, this is a 2002 2.0 Gti engine code AJZ

[teerak2uk]

VW GOLF V 2.0 TDi 16v CATALYTIC CONVERTER,CAT on eBay (end time 25-Jul-09 00:54:28 BST) (http://cgi.ebay.co.uk/VW-GOLF-V-2-0-TDi-16v-CATALYTIC-CONVERTER-CAT_W0QQitemZ270415033303QQcmdZViewItemQQptZUK_Car sParts_Vehicles_CarParts_SM?hash=item3ef5fdf3d7&_trksid=p3286.c0.m14&_trkparms=65%3A12|66%3A2|39%3A1|72%3A1683|293%3A1| 294%3A50)


Sh*t i was just looking at his shop too lol

but anyway if thats not it then the guy has loads

cheers Sminoff

right i`m out of here need to go do some work hope you get your car sorted

cya guys

[smirnoff_rules]

That's for a Tdi, this is a 2002 2.0 Gti engine code AJZ

didnt know u high jacked the thread lol l was looking at the heading VW/Audi/Seat/Skoda tdi help available

[Liteace]

didnt know u high jacked the thread lol l was looking at the heading VW/Audi/Seat/Skoda tdi help available

Sorry didnt see the Tdi bit, but my 1st question is re Tdi

[greg123]

To eliminate all this confusion, the 'Bank' is to do with V engines. EG the left side cylinders/head & sensor to differenciate between those and the bank of cylinders on the other side. The golf is 4 cylinder and has NO banks, they just call the whole engine Bank 1 by default. So, don't concern yourself with that.

There are 2 02 sensors, pre and post cat. If the post cat sensor is picking up no or little reduction in emissions, you will get a cat efficiency error. Check that the pre-cat sensor is reporting around 1.5% co or less (if it's more the engine is likely running too rich) and if so try a can of cat cleaner, if that fails a new cat may be needed.

Do check the responses (they cycle slower as they get older) and values of the 02 sensors though, plenty of info on the net to find out how to do this. VAG-COM measuring blocks give you all the values.

Greg.

[Liteace]

To eliminate all this confusion, the 'Bank' is to do with V engines. EG the left side cylinders/head & sensor to differenciate between those and the bank of cylinders on the other side. The golf is 4 cylinder and has NO banks, they just call the whole engine Bank 1 by default. So, don't concern yourself with that.

There are 2 02 sensors, pre and post cat. If the post cat sensor is picking up no or little reduction in emissions, you will get a cat efficiency error. Check that the pre-cat sensor is reporting around 1.5% co or less (if it's more the engine is likely running too rich) and if so try a can of cat cleaner, if that fails a new cat may be needed.

Do check the responses (they cycle slower as they get older) and values of the 02 sensors though, plenty of info on the net to find out how to do this. VAG-COM measuring blocks give you all the values.

Greg.

Greg, thanks for that info, any idea what the pronlem might be with the Tdi (my 1st post on this thread) and the vag-com

[greg123]

Get the wiring diagram and check the K-line connections to the engine ecu. If necessary tap into the wiring prior to the ECU and see if you can get vag-com to log in. There should be a path from the diag pot to the ECU multi plug, as the engine runs the ecu must have power and be operational so I'd be looking at the wiring.

Greg.


Hi, I need some help please. I have here a:
96 Golf Tdi engine 1Z chassis 1H
when I plug in the Vag-com and do a scan it will only find the airbag module and nothing else, I have checked the aftermarket radio problem and that?s fine. what could be the problem, why won?t the Vag-com communicate with the rest of the car?


I also have from another car, this:

Thursday,16,July,2009,11:28:37
VAG-COM Version: Release 607.3-UD
Chassis Type: 1J - VW G/J/B Mk4
Scan: 01 02 03 08 15 16 17 19 22 29 35 36 37 39 46 47 55 56 57 75
76

VIN Number: WVWZZZ1J**********
-------------------------------------------------------------------------------
Address 01: Engine
Part No: 06A 906 032 FK
Component: 2.0l 2V AGW 4238
Coding: 00001
Shop #: WSC 00000
WVWZZ********* VW***********

1 Fault Found:
16804 - Catalyst System; Bank 1: Efficiency Below Threshold
P0420 - 35-00 - -
Readiness: 0000 0000

Is this going to be a problem with the 1st (before cat) o2 sensor, the cat, or the 2nd (after cat) o2 sensor. In the measuring blocks of the vag-com what values should I be seeing in there, say for example the cat is faulty would that make the 2nd o2 sensor read wrong and display different values.
Im all new to this diagnostics, when I leant mechanics we were in the Mk3 Escort era, no such thing as OBD so im getting stuck in and trying to learn, so any help would be greatly appreciated

Thanks

[Liteace]

To eliminate all this confusion, the 'Bank' is to do with V engines. EG the left side cylinders/head & sensor to differenciate between those and the bank of cylinders on the other side. The golf is 4 cylinder and has NO banks, they just call the whole engine Bank 1 by default. So, don't concern yourself with that.

There are 2 02 sensors, pre and post cat. If the post cat sensor is picking up no or little reduction in emissions, you will get a cat efficiency error. Check that the pre-cat sensor is reporting around 1.5% co or less (if it's more the engine is likely running too rich) and if so try a can of cat cleaner, if that fails a new cat may be needed.

Do check the responses (they cycle slower as they get older) and values of the 02 sensors though, plenty of info on the net to find out how to do this. VAG-COM measuring blocks give you all the values.

Greg.

Greg, you say "VAG-COM measuring blocks give you all the values" but what can i compare them to ??

[Liteace]

Get the wiring diagram and check the K-line connections to the engine ecu. If necessary tap into the wiring prior to the ECU and see if you can get vag-com to log in. There should be a path from the diag pot to the ECU multi plug, as the engine runs the ecu must have power and be operational so I'd be looking at the wiring.

Greg.

So is the airbag on a different pin from the engine in the OBD socket ? reason I ask is because when i plug in VAG-COM and do port test i get K1 & K2 OK

Thanks
Steve

[greg123]

It's on a bus, you could have 20 different systems there. You can unplug the engine ecu and the K-line will still be active communicating with other modules.

I'd tap in directly to the engine ECU, or trace out the wirig from it.

Greg.


So is the airbag on a different pin from the engine in the OBD socket ? reason I ask is because when i plug in VAG-COM and do port test i get K1 & K2 OK

Thanks
Steve

[Liteace]

It's on a bus, you could have 20 different systems there. You can unplug the engine ecu and the K-line will still be active communicating with other modules.

I'd tap in directly to the engine ECU, or trace out the wirig from it.

Greg.

Greg, do you know if the TV14 (Self-diagnosis wiring junction, above the relay plate) is just a connector for all the modules on the car, that connector draws no power from the fuse \ relay box does it ? & also where does the wire from the immo connect to, the gr wire comming from "k" (Dash panel insert) it says it goes to T1 on the TV14 but the TV14 does not have T1 on it ??

Thanks
Steve

[greg123]

Greg, do you know if the TV14 (Self-diagnosis wiring junction, above the relay plate) is just a connector for all the modules on the car, that connector draws no power from the fuse \ relay box does it ? & also where does the wire from the immo connect to, the gr wire comming from "k" (Dash panel insert) it says it goes to T1 on the TV14 but the TV14 does not have T1 on it ??

Thanks
Steve

No - but if you give me the VIN number and the make/model I can get the details out of ETKA and then see if I can pull a wiring diagram from autodata or ElsaWin for you if I know what section you want? Autodata normally has a whole schematic on one page for the engine ECU which may help you.

Greg.

[Liteace]

No - but if you give me the VIN number and the make/model I can get the details out of ETKA and then see if I can pull a wiring diagram from autodata or ElsaWin for you if I know what section you want? Autodata normally has a whole schematic on one page for the engine ECU which may help you.

Greg.

Its a 96 Tdi CL, engine code 1Z. Problem is the Autodata dont show the TV14 in the diagram. As far as i can tell all the modules connect to the TV14 and then run to the DLC BUT as i say on the Elsawin it shows the grey wire that comes from dash pannel insert connects to the T1 on the TV14 but if you have a look at the TV14 its got:

T1x
T1y
T1v
T1w

the other 6 connectors are all T2's with T2a/1 (orange wire)either K line 1 or 2 going to the DLC and the other side of that T2b/1 going to the ECU and T2a/2 (grey\white wire) again going to DLC and other side to ECU. As far as i can make out T2a/2 & T2b/2 are connected to all the T1's for the modules to connect to and the T2a/1 & T2b/1 are direct line to ECU from DLC with one spare connection (T2/1) on the TV14, please correct me if im wrong

Thanks
Steve

[mad_mark]

greg123 (http://www.digital-kaos.co.uk/forums/members/62090-greg123/), do you maybe have CAN wiring diagram for 2000 golf/bora ? my friend has a problem with haldex. it's not working at all, the ESP light stays on and VAG-COM throws out fault codes on ABS and HALDEX controllers that they can't talk to each other. i tried to see MB 125 on haldex controller but VAG-COM just hangs then. I don't remember the fault codes numers i have them on another computer but so far we figured out that we need to make sure all wiring between haldex and ABS are ok but we don't really know which cables to check...

ps when we turn on the ignition we hear haldex pump going on and off continously, when i open haldex controller with vag-com the pomp stops.

[ixilon]

HI!
I really need wiring diagram for volkswagen golf 1 1981, please post it or mail me.
Thanks!

[A11463]

Which part of wiring diagram did you need?
Must been looking for it but think so that I have it

[ixilon]

Which part of wiring diagram did you need?
Must been looking for it but think so that I have it

The most needed is the fuse box and the instrument cluster, but I would appreciate everything about electric.

Thanks!

[A11463]

This is part one I can to for you:

RapidShare: 1-CLICK Web hosting - Easy Filehosting (http://rapidshare.com/files/371972466/Elektrische_Anlage_Gol1974-1983Digi_t.zip.html)
MD5: 9C1CCD08540329D8F0D36B0A115A5C22


Part two is following but must search on very very old backups because many many years ago I lost 6GB data like this or I must make it new.

Don't worry ........

[rastonish]

Hi greg123, hope everything is fine. well can you show me how to calculate immobiliser login code of the 14 digit serial number that is shown when you put a VCDS on the car.

[greg123]

Hi, no you can't do that. You need VAG-TACHO or VAG CAN-COMMANDER normally to extract the SKC which is the login for the instruments/immobliser. It can't be done through VCDS, though you can code in things with VCDS eg keys if you already have the SKC. Greg.