Düsentuning; Golf III TDI mit Automatikgetriebe | Posts 16+

Hm, my diesel engine management book knows that, but I'm not at home.

m;

http://buschtaxi.net/cgi-bin/ikonboard/topic.cgi?forum=9&topic=57

I know this by heart, for example. VE4/12R2000-437
V = distribution pump
E = Size/Type.
4 = Number of cylinders.
12 = Pump piston diameter in mm.
R = Runs clockwise.
2000 = Maximum speed (pump speed is always half the motor speed).
437 = Execution number; this number conceals all other parameters related to the pump application.
For Bosch in-line pumps, the principle is similar, except that instead of "V", there is a "P".
Then, various letters and numbers follow, for example. S = Forehead flange attachment, cylinder diameter and stroke, multi-material/multi-substance capability, etc.
Perhaps it's the same with Denso.


So, Georg has a 10-liter piston pump, which makes the possibility of using a 184-size nozzle more likely.

m;

dieselmartin wrote:

Hm, my diesel engine management b o o k at home knows that, but I'm not at home

Could you please check again sometime, or can someone else tell me?

VE4/10E likely refers to a 4-cylinder engine with a 10mm characteristic dimension. I just compared it to the ALH.

By the way, the ALH switch was probably only available with a 10mm size, while the automatic version was available in both 11mm and 10mm sizes . According to the Bosch Ecat system... (Input: VW, Golf4, 90PS, then check the fuel injection pump labeled "ALH").

Regards,
Guste.

Hold on, I'm going to take a look.

Although I'm at work and will probably have to explain what I'm looking for under the hood in the parking lot, whatever...

I already read those data a year ago, when my ESP was about to fail. I also have some photos of the pump on my computer, but I can't really make out much detail in them.

@dieselmartin:

I'm not angry with you either; I'm happy to be 'further educated.' Above all, I have never claimed to be more qualified or experienced than anyone else in these matters.

So, in that sense...

Georg.

So, dear friends, I'm back!

I'm afraid I have to disappoint you, because there's nothing here that mentions VE4/ ... ?!

Here's my small correction:

0 460 404 985
R 510 – 1 BT 4015 (large font)
028 130 110 H
798478

I can't find anything related to 'VE4/' anywhere.

Am I already that STUPID, or don't I have a STANDARD pump in there???

Help!!!

'It looks exactly the same as it does for me, just much cleaner.'

[Dead link]

And now...

Georg-TDI wrote:

0 460 404 985

That sounds much better. Bosch says:
0 460 404 985 has been replaced by 0 460 404 971 and 0 986 440 505.
Both have the OE number 028 130 110 H.

Therefore, your information is consistent. Bosch states in the product information for both pumps, VE4/10E2250R510-3 (compare http://www.bosch-automotive.com/ecat-online/).). Therefore, you have a 10mm pump.

And thus, with a certainty exceeding 99%, including .184 nozzles, as well as the AHU switch and all 1Z...

Okay, so: If you're looking to increase the nozzle size: Use the .205 size from AFN or the .216 size from the five-cylinder engine, if you want a bit more (but be aware of the risk of fuel enrichment).

The end.

-Guste

Just a quick note:

The ALH automatic variant has an 11mm pump and 0.158-inch injectors.

why?

Look at the emissions regulations, and you'll understand why.

In this combination, the pump and injector deliver the same injection volume as a 10mm injector with a 0.184 opening, similar to the manual transmissions, but with a significantly higher injection pressure, resulting in better atomization. This ultimately leads to better emission values, allowing even the more fuel-consuming automatic transmissions to meet their emission standards. These standards take into account both the distance traveled and the vehicle weight. For example, in the USA, the 90hp ALH engine typically runs with an 11mm injector and a 0.158 opening, even with a manual transmission.
The disadvantages are the increased load on the pump drive and the fact that the machine becomes quite sluggish at high speeds.

When you install 0.184 injectors on a 11mm ALH engine, the theoretical power output is 122 horsepower, and the dyno reading is 120 horsepower.
If you were to use a 0.205 caliber projectile here, it would become a 'Russ-launcher.'

The AHU engine might actually have the standard version (10mm, 0.184) because, at that time, the emission regulations were only Euro-2.
Then, of course, you'll need to change the nozzles to a 0.205 size.
Therefore, the exact part number of the nozzles needs to be determined.

If there are still skeptics who doubt the potential of engine tuning: look at which fuel injectors are used in the 90PS and 110PS versions, and examine the EDC (Electronic Diesel Control) maps. Then, look at the fuel injectors themselves. And then install those 'special' injectors and DRIVE! A bumblebee, theoretically, shouldn't be able to fly...

CU Gremlin.

Gremlin wrote:

Quote:

see the USA, where the 90hp ALH engine generally runs with 11mm and 0.158, even with a manual transmission.

Hello,

IMHO, that's not correct. The ALH (Advanced Lean Hybrid) system operates as a switch, using injectors with a .184 size in semi-automatic mode, and even smaller injectors in automatic mode. That's at least what it seems to be based on thousands of posts.

Does anyone here know if the 110 TDI engine was ever offered with an automatic transmission at any point?

Georg.

Does anyone here know if the 110 TDI engine was ever offered with an automatic transmission at any point?


It used to be available on Audis, I think, specifically the older A4 models.

CU Gremlin.

Thank you very much to everyone!!!

Now, we've jointly determined that my AHU Automatik has a standard 10mm pump and stock 0.184 nozzles.
You've explained everything perfectly, thank you.

I estimate that bringing clarity to this whole situation was actually very positive for this forum. Now we know that a 1.9 TDI engine combined with an automatic transmission was only available from the EURO-3 standard onwards (e.g., It was equipped with an 11mm pump and smaller 0.158 injectors.

It has once again become clear that this forum possesses far more expertise and experience than any Volkswagen workshop. They were claiming, quite confidently, that I had a non-AHU-compliant 11mm pump installed, even though the computer couldn't confirm this.

Let's move on and thank you very much to everyone involved!
Best regards, Georg.

Um, sorry, may I interject here with an objection?

The Golf 3 Variant with the ALE (EURO 3) engine was (probably) also sometimes equipped with an automatic transmission.

and the ALE always has the same nozzles .

Please don't use EURO 3 as the criterion, but instead consider the "new" 038 engine version, which was available starting with the Golf 4.

In the Volkswagen Golf 3, all TDIs were 028 models.

(regarding the beginning of the part numbers - easily recognizable by the position of the ESP:)
028: Lid horizontal.
038: Lid tilted forward - much more space between the head and the ESP (Electronic Stability Program).

Oops, and what about the AGR (Association for the Promotion of Road Traffic) rating with an automatic transmission? This is a 038 model with Euro...?

Darn it, I've raised more questions again...

m;

Thank you, Martin.

Hmm...
It's turned into a nice and informative thread on a standard topic, hasn't it?

A valuable addition to the forum, in my opinion.