VAG-COM error codes

Hello,
I'm new here and I already have a few questions.
The airbag warning light is on in my 1999 Octavia SLX with 115 horsepower, including a chip tuning modification.
It seems to be a standard problem.
Control unit part number: 1J0 909 608 BD.
Part and/or version: AIRBAG VW3 S V04.
Encoding: 16964
Workshop code: WSC 31480.
1 error code found:
00588 - Airbag igniter (driver side) (N95)
33-10 - Resistance value too low - Intermittent.

Okay, the error is likely the same as the one described here:
/viewtopic.php?t=1852&highlight=00588
or could it be something else?


When I read the error memory, another error appeared that is not displayed on the instruments.

Control unit part number: 038 906 018 GM.
Component and/or version: 0000SG 2162
Encoding: 00002
Workshop code: WSC 31480.
1 error code found:
01282 - Vacuum switching valve for throttle valve (N239)
31-10 - Intermittent interruption / Short circuit to ground - Sporadic.


I searched the forum, but I only found this.
/viewtopic.php?t=5235&highlight=01282
Unfortunately, I don't really understand it. What exactly does the throttle valve do?
Is it bad to drive with this error? Is the repair complicated and expensive?
Sure, no problem.
Hi scHl8ter,

I can't really say much about the airbag, except that I wouldn't want to mess with it myself.

Regarding the throttle valve:

It's located in the exhaust gas recirculation unit and completely blocks the air supply when you turn off the engine (so that it has nothing left to compress and doesn't shake).

It's essentially just a convenience feature.

You can see this part in action when an assistant turns off the motor; then, the flap pops into the "closed" position and opens again after a few seconds. You can find the valve by following the hose.

m;

In the upper left corner, the metal can is the AGR (Abgasrückführung valve), and on the side is the throttle valve.
http://www.luxus-wg.de/~martin/auto_bilder/AGR1.jpg

hey, that was fast .
I asked a question on another forum about a week ago, and I haven't received any responses yet.
Okay, thank you very much.

So, does that mean that if the valve moves to the 'closed' position, everything would essentially be okay?
Since the error is intermittent, it's possible that it only occurred once, but the error code is still stored in the error memory. Am I understanding that correctly?
scHl8ter

Well, it's not purely a matter of comfort. If the engine has a defect and oil leaks from the oil pan, you won't be able to get it out without this cover. Then it will continue to run until it dies...

If the flap stays open while driving, everything is fine.

If it's convenient when parking, it's nice (this is an unnecessary, but pleasant, convenience).


However, if you pull too hard on the steering wheel while driving, it becomes unpleasant because it will stall the engine. Especially unpleasant when overtaking with a truck approaching from the opposite direction .

Fix the error and observe when it reappears. Maybe he won't come back at all.

m;

Okay, I will do that. Then the only problem remaining will be the airback.
Thank you again.
scHl8ter

'Hello, the throttle valve is there to help your exhaust gas recirculation (EGR) system work better. It does close briefly when the engine is turned off, but that's not its main function. Here's how it works: when the EGR valve opens to redirect exhaust gases back into the combustion chamber to lower the combustion temperature, which is necessary to meet emissions standards. Now, regarding the valve: it prevents the pressurized air coming from the turbo from bypassing the EGR system while the EGR valve is open. This creates a vacuum behind the valve, which allows it to draw in the exhaust gases. That's what my teacher said in vocational school.'

Hi,

Shut-off valve is not the same as a throttle valve!

The shut-off valve operates in a binary manner, meaning it can only be in one of two states: open or closed. It cannot be in any other state. The function is as described above when the engine is stopped.

Throttle valves are not present in at least the VE-TDI engines, and most PD engines as well, as far as I know.

However, some newer VW TDI models have it - I have no idea which ones.

Best regards,

Jan.

ohh, thank you for the many answers .
I haven't had time to check if the valve is working yet, but I will check it this weekend.
Does anyone know anything about 'airback'? Or am I right in my assumption?
Hi scHl8ter,

Jan6K wrote:

... However, some newer VW TDI models have it - I have no idea which ones. ...

For example, the AXR has a throttle valve.

The SDI (presumably referring to a specific type of AKU device) has a pneumatic THROTTLE VALVE.

I haven't encountered any TDIs yet.

@bertil, how do you come to the conclusion that the AXR has a throttle?

Does it have an electrically controlled AGR cooling valve? That's good, because you could potentially use it for throttling.


The others have a pneumatic valve and only a switching valve connected to it, which means they can only be opened or closed. Only VTG (Variable Turbine Geometry) and AGR (Air Gas Ratio) systems have pulse valves and can achieve any desired position.

m;

dieselmartin wrote:

@ bertil, how do you come to the conclusion that the AXR has a THROTTLE ???

...because I've now found out what was causing the jolting/jerking sensations I was experiencing before the STG replacement (software update).
The issue is related to insufficient fresh air due to a restricted fresh air supply. How else would you restrict the fresh air intake without a throttle?

and

Okay, I'm ready. Please provide the German text you want me to translate.


The newer EU4 models likely all have a throttle valve to ensure more precise emissions control. The exhaust gas recirculation valve alone cannot precisely regulate the exhaust gas quality under partial load conditions.