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TDI 1.9: 110 HP & Speed Buster 2

 
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SchodMC
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Post29-05-2002, 11:52    Subject: TDI 1.9: 110 HP & Speed Buster 2 Quote

Hi,

I have a question.

I bought the SpeedBuster 2 box, and I'm now experiencing the following issue:

Beim Gasgeben (ab ca. 2000 Upm) geht so richtig was ab, aber nach oben hin (ab ca. 3500 - 4000) kommt nichts mehr. Mein Auto (SEAT Toledo 1l) fuhr auf jeden Fall 200, jetzt kommt er gerade noch so auf 180-190. What is the reason for that?

Also, it's also possible that sometimes, after starting the engine, the preheating light will flash. If I then turn the engine off and on again, everything is fine.

It's possible that I haven't configured the device correctly. Could someone give me some tips on how to set it up?

And is it really definitely harmless for the engine (which is about 4 years old and has 85,000 km)?

Thank you in advance.


Translated on 25-09-2026, 16:06.
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Rudi
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Post29-05-2002, 13:43    Subject: TDI 1.9: 110 HP & Speed Buster 2 Quote

Hi,
If the boost is set too high, the engine control unit will switch to a limp-home mode (which is why the speed is limited to 'only' 180 km/h).
2. The device is likely defective or incorrectly connected, because otherwise the self-test after startup should not find any errors (but it does, as you can tell from the blinking indicator light).
3. If someone told you that it was definitely harmless to operate a box, then they lied to you!

Based on how your device seems to be configured, it might actually confirm the reports about 'engine failures caused by power boxes' that occasionally appear in the press.


Translated on 25-09-2026, 16:08.
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ulf
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Joined: 04/13/2002
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2023 MG ZS
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Post29-05-2002, 18:14    Subject: 3 Controllers: It's Already Complicated... Quote

Hi.

Okay, I understand. Please provide the German text you want me to translate into English. I will only provide the translation.

/viewtopic.php?p=1403#1403

...then, in my opinion, at least something reasonably practical should result.

Did you not receive any installation instructions?
Gruß Ulf
_________

MG4 Electric


Translated on 25-09-2026, 16:09.
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wieeingrosser
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Post24-05-2003, 18:04    Subject: TDI 1.9: 110 HP & Speed Buster 2 Quote

Hello everyone,

I also have the problem that I don't have an instruction manual for setting up my Speed Buster 2 box. Does anyone perhaps have the original manual? My box has three potentiometers labeled I, S, and T!

It would be great if someone could help me.

Thank you.

Frank


Translated on 25-09-2026, 16:10.
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MichlM
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Post11-06-2003, 9:20    Subject: Re: TDI 1.9 110 PS & Speed Buster 2 Quote

Hi,


Außerdem kann es sein, dass manchmal nach dem Start die Vorglüh-Lampe blinkt. Wenn ich dann den Motor aus und wieder einschalte, ist alles in Ordnung.



Hallo SchodMC !
Habe das gleiche Problem.

Nach längeren (Ver)-suchen habe ich erkannt das es bei mir an meinem 'defekten' icon_twisted.gif AGR-Ventil liegt.

Da der LLM im Stand ohne geöffneten AGR-Ventil mehr Luftmasse misst glaubt die Box das man bereits über 800-900 U/min dreht und 'erkennt' daher den Leerlauf nicht mehr.

Mann bekommt das Prob nur in den Griff wenn entweder die S- (Wie Saugbereich) -Schraube SEHR Stark zurückdreht (bewirkt natülich eine Reduktion der Leistungsserhöhung unter 2000 U/min icon_cry.gif ) oder man schaltet das AGR-Ventil wieder ein.

Da mein AGR-Ventil tatsächlich kaputt ist icon_mad.gif (steckt in Stellung offen) und ich es deswegen nicht 'aktivieren' kann experimentiere ich zur Zeit an einer 3. Lösung, wo mit einem Unterdruckschalter an der AGR-Steuerleitung im Stand die Leitung vom LMM zur Box unterbrochen wird und somit der Box der Mengenabfall im Stand 'vorgespielt ' icon_razz.gif wird.

Gruß
Michl


Translated on 25-09-2026, 16:10.
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