Ignition timing for Polo 86c, 40 kW, year 1992, 1272 ccm

Hi.
Right now, I'm driving the vehicle mentioned above.
I couldn't find the engine code... sorry, I know.
The engine has a standard adjustable distributor.
I was just told that the ignition timing can only be adjusted via the engine control unit (ECU) because the ECU continuously adjusts the ignition timing.
Tell the control unit: We are now turning off the ignition.
Set the oscilloscope to the OT (Over Time) setting using a stroboscope.
Tell the control unit: We are finished.
Um, how is that even possible if it's a standard distributor (without a vacuum advance)?
The previous owner had replaced the distributor and only adjusted it by ear...
Does the above procedure correctly describe how to adjust the ignition timing? Can I do that myself using a stroboscope?

I haven't found the engine code in the usual places. Where else could it be?

Best regards, Frank.

Options include NZ, 2F, and 2G. I hope it has a catalytic converter, as that would eliminate the 2G option. It would be helpful to know if it's a Digifant or a Digijet. The latter would need a vacuum sensor... but it's been too long for me, I don't remember.

Quote:

Or can I do that myself using a strobe light?

Exactly.

Hi,
The vehicle identification number (VIN) should be found in the service booklet and on a sticker in the trunk. I know that, given the vehicle's history, that feature might no longer be present in a 1992 model.
Then, if necessary, it can be adjusted through the engine configuration, but also through the key number and the emission class.
What does the documentation say?
hg
More bitter.

Hi.
Key number 0600 599.
Label indicating the national emission class = Low emission.
text
Code: 0401
How do I find out the engine code?
Best regards, Frank.

Or can I do that myself using a strobe light?

Exactly like that.

Apparently, that's supposedly not possible.
Reason: The control unit automatically adjusts to the set value.
What I can't quite imagine, and the engine's running behavior changes depending on the distributor's orientation.

Before I ask any more questions, I'll wait and see what engine code emerges.

Best regards, Frank.

It's not entirely clear how the key number was entered. Old pattern or new pattern?
I'm guessing: under "2" there's "0600", and under "3" there's "599xxx".
Then it's a Polo 1.3L 40kW engine, either the NZ model (until 12/92) or the AAV model (1990-1994).
hg
Herbert.

The manuals for AAV (monomotronic) systems actually refer to a basic setting of the engine control unit as an adjustment condition.

Similarly, only the vacuum line connected to the control unit for ignition timing adjustment should be disconnected.

With 2G (carburetor) engines, neither of those things is required.

It is not entirely clear how the key number is entered. Old pattern or new pattern?
I'm guessing: under '2' there's '0600', and under '3' there's '599xxx'.
Then it's a Polo 1.3L 40kW engine, either the NZ model (until 12/92) or the AAV model (1990-1994).
hg
Herbert
Hi Herbert,
I've only had the car for a short time, so the registration document is new.
There is no vacuum hose on the manifold, and since it has a single-point injection system, it is therefore an AAV engine.

Okay.
What alternatives are there now for adjusting the ignition timing?
The previous owner had replaced the distributor and adjusted it arbitrarily.
I'm getting around 8 liters per 100 kilometers, and I'm not sure if it's due to my driving habits or the settings.
Rev it back down until it starts to sound low and then give it a little more throttle.
Due to the exceptionally poor quality of service I have experienced at the local VW workshop, I will NEVER go there to have my ignition timing adjusted.
So, what alternatives are there for a verschandeln and straightforward approach?
Best regards, Frank.

F B wrote:

So, what alternatives are there for a verschandeln baseline? Best regards, Frank

VCDS + adapter cable?

So, what alternatives are there for a verschandeln initial setup?
Best regards, Frank

VCDS + Adapter cable ?

Unfortunately, it's more expensive than the entire car.

Is there a shareware version available?

Best regards, Frank.

http://shop.dieselschrauber.de/vcds-basis-diagnoseadapter-kkl-p-36.php

I don't think a diagnostic system will be helpful in this case, as there probably isn't even a diagnostic port installed yet.

If I knew the engine code, I could try searching for it. I think I had something somewhere about how to adjust the 1.3L engine with catalytic converter in a Golf 2.

Best regards, Rainer.

What's this all about now? You have a car from 1992; you can easily check the ignition timing with a timing light. Even if it's a model without vacuum advance, as you mentioned (AAV), it's still possible to check it this way. I would start by doing that. To set up and save the settings, you probably need diagnostic software and the additional cable for the AAV. Is it worth it for this particular vehicle?

I don't think a diagnostic system will be helpful in this case, as there probably isn't even a diagnostic port installed yet.

If I knew the engine code, I could try searching for it. I think I had something somewhere about how to adjust the 1.3L engine with catalytic converter in a Golf 2.

Best regards, Rainerhttp://shop.dieselschrauber.de/vcds-basis-diagnoseadapter-kkl-p-36.php

It should be AAV, but with no guarantee.
Two sockets are available, but they are not OBD2.
I have a cable for these connectors for an OBD reader, but nothing is being read.
Either it's broken, or the device is not compatible.

Best regards, Frank.

What is this all about now? You have a car from 1992, so you can easily check the ignition timing with a timing light.


Okay, it's checking, but the spark is just jumping around uselessly.
I was told that it's not possible to do that directly, but only through the control unit.
And no, I don't want to/can't spend a lot of money on diagnostic software, at least not without being certain that I can actually fix the problem with it.

The purchase of this software is planned, but as always, it all depends on the availability of funds.
Best regards, Frank.

F B wrote:

Okay, it's checking, but the spark is just jumping around uselessly. I was told that it's not possible to do that directly, but only through the control unit. And no, I don't want to/can't spend a lot of money on diagnostic software, at least not without being certain that I can actually fix the problem with it. The purchase of this software is planned, but as always, it all depends on the availability of funds. Best regards, Frank

Okay, so if it's jumping around like that, why don't you take it to a Bosch service center and have it adjusted for a small fee. It shouldn't be a big deal.