10-cent tuning, but no performance gain?

Hello fellow diesel mechanics!
I finished and installed the '10-cent tuning' today. The result: the car drives like always. You should be able to tell that it's supposed to add 20 horsepower, right?
It doesn't smoke, it doesn't misfire, it actually drives like normal.
What could be the cause? Who knows? Is there a solution?
Everything was made exactly according to plan.
VW connector with cable.
12-volt switch in series.
150-ohm fixed resistor in series.
Connect a 2.2 kΩ resistor in series.
1N4148 diode, 2 pieces, antiparallel.
I soldered all of that to cables 2 and 3.
result: 0, performance more or less.
Thank you in advance.
Chris from Stuttgart.
Oh yeah.
I might also imagine that he's not performing well, but the times speak for themselves.
On the contrary, if I remove that 10-cent piece, the engine runs more smoothly and quietly.
Acceleration from 60 to 90 km/h in 3rd gear in approximately 6.0 seconds.
Adjusting the speed from 60 to 90 km/h in 3rd gear takes approximately 6.8 seconds.
I can adjust the potentiometer however I like, but it doesn't change anything; it stays at 1000 ohms or 150 ohms.

What kind of car is it?
What kind of engine is it?

Can you draw or photograph a picture of your circuit?

I really noticed the difference with my 10 cent piece!

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.

chrisgtd1 wrote:

Acceleration from 60 to 90 km/h in 3rd gear in approximately 6.0 seconds. tuning from 60 to 90 km/h in 3rd gear in approximately 6.8 seconds

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I guess you hit the wrong pressure points.

hello ulf
Okay, I did it the way you emailed me to do it.
Pump cables 2 and 3.
Yesterday, I resoldered the fixed resistor that was located in front of the potentiometer to be behind it.
nothing either.
because, in theory, the motor should switch to the fixed resistor when the potentiometer is at position 0.
and thus, black soot is released.
It doesn't matter at all.
It also doesn't turn on; nothing happens.

Martin, I have a Volkswagen Golf 3 TDI with engine code 1Z and 66 kW, which is equivalent to about 90 horsepower.
New air filter, new glow plugs, Euro 2 standard.
Okay, my circuit looks like this:
I have a circuit board that is approximately 5cm by 5cm in size.
I have a clamping strip for that.
where I have pump cable 2 as an input.
This leads to a potentiometer with a value of 2.2 kΩ, followed by a fixed resistor with a value of 150 Ω.
Then the antiparallel diodes are also connected in series.
from the last diode to the terminal block.
from there to the on/off switch.
and that goes to the pump cable, terminal 3.
I assembled them myself according to the instructions from the VW dealer.
so, 1 in 1, 2 in 2, 3 in 3, and so on.
8-pin cable empty.
and connect cables 2 and 3 as well, and desolder the wire from the circuit board.
parallel
I don't know what to do next either.
Look, I'm going to take a picture and then email it to you.
martin, what's your address?
(email)?
best regards, chris

My circuit board looks similar to the one used in Andreas's €0.10 tuning project.
'The only difference is that mine has a fixed resistor, and you can see the potentiometer from underneath.'
I have the connections from the potentiometer viewed from the front, so the adjustment knob is at the back.
Entrance on the left, exit on the right.
I measured it according to the device's readings.
that something can be arranged there.
Is port 3 empty?
What is the purpose of having three connections for something like that?
and the diodes should be connected with the black ends facing outwards, like in Andy's picture.

chrisgtd1 wrote:

I have a clamping strip for that. where I have pump cable 2 as an input. This leads to a potentiometer with a value of 2.2 kΩ, followed by a fixed resistor with a value of 150 Ω. Then the antiparallel diodes are also connected in series. from the last diode to the terminal block. from there to the on/off switch. and that goes to the pump cable, terminal 3. I assembled them myself according to the instructions from the VW dealer. so, 1 in 1, 2 in 2, 3 in 3, and so on. 8 test cable empty

To clarify:

All pump cables must initially run continuously from the input to the output connector, just like a standard extension cable without any interruptions.

Even when connecting the tuning device, no cables are interrupted or rerouted across the circuit board; instead, the tuning is simply implemented as a kind of "adjustable short circuit" between cables 2 and 3.

I suspect that your circuit looks different somehow. Because it seems to be working, but in the wrong direction (which is causing DZR timing issues).

chrisgtd1 wrote about connecting the potentiometer:

Entrance on the left, exit on the right.


Typically, with Potis, the adjustable resistor is located between the center pin and the other two pins.
(By the way, you have 3 options to choose from regarding the direction of rotation, I think ).
There is a constant full resistance between pins 1 and 3. According to technical articles, this has the smallest tuning effect!
That would explain the lack of performance...

Best regards,
Ruki

Ruki wrote:

There is a constant full resistance between pin 1 and 3. -> According to technical articles, this has the smallest tuning effect! Das würde den Leistungsmangel erklären...

If everything is properly connected, there should be no loss of power compared to the original setup.

At maximum resistance, the power gain is minimal (or zero, according to some measurements).

Okay, I've emailed you a picture of the circuit diagram.
I don't know how to use it (on the forum).
Maybe this will help you?
Otherwise, all the work would have been for nothing.
Okay, greetings to Chris.

chrisgtd1 wrote:

um I emailed you a picture of the circuit. ulf, I don't know how to use it (on the forum)

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@ Readers:
According to his diagram, the diodes are connected in an anti-series configuration instead of an anti-parallel one, which means the device cannot function properly.
(Answer already sent as a direct message.)

I did it the same way as Andy in the picture.
Place the diode rings so that one set faces towards the potentiometer and the other set faces towards the pump cable.
in Rainer's post (pictures of Andy's tuning solution).
What does that mean for me? I turned it around, and now it works.

chrisgtd1 wrote:

was heisst das nun für mich umdrehen und es funzt?

It depends on what you want to turn over...

"Antiparallel" means "antiparallel".
Connect diodes in parallel.
2. but such that the rings point in different directions.

And then connect this circuit in series with the potentiometer, fixed resistor, and switch.

It's me again, Ulf.
The diodes are as shown in the picture I emailed you.
Try connecting the rings towards the potentiometer and the other diode towards the direction with the ring on the diode, pointing towards the pump cable. Let's try it like that.
These are the diodes.
Cable number 2 from the pump, then the switch is connected in series.
Go to the potentiometer and set it to a fixed resistance of 150 ohms.

onto the diode.

soherum | then the other diode soherum | then to pump cable number 3.

chrisgtd1 wrote:

the diodes are as shown in the picture I emailed you. Connect the rings to the Potie connector and connect the other diode with its ring facing towards the pump cable. Bitte gib mir den deutschen Text, den du übersetzt haben möchtest. soherum |- then the other diode soherum -| then to pump cable number 3

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Do you know the difference between parallel and series circuits?

hello ulf
Yes, I know the difference.
I did it that way too, and it worked.
It just looks different in the picture of Andy that appears in the 10-cent editorial.
A circuit diagram would also be interesting to see.
Then you can save yourself the trouble. Nevertheless, thank you very much, Ulf and everyone else.
You guys are really great, and 'dieselschrauber' is definitely one of the best websites on the internet.
I've been driving a car with 115 horsepower since yesterday.
Okay, now I just need to verschandeln and decommission the AGV, and then everything will be in order.