VCDS and OBD diagnostic device in the On-Board Diagnostics Shop
Diesel, Engine Technology and Vehicle Technology. Repair, Maintenance and Diagnostics (OBD).

More Torque at Low RPM: How to Get It

 
New Topic Reply 🔗 ⭐ 🖨 Dieselschrauber - Index » Diesel Engine Technology
Author Message
tim27
Guest




 


Free account, no CAN development support

Post16-04-2003, 9:24    Subject: More Torque at Low RPM: How to Get It Quote

Hello,
If I were to trick the engine control unit (ECU) into believing that a boost pressure of 1 bar is present at, for example, 1300 RPM, the engine would receive more fuel, which would result in increased torque. This pressure could be drawn from a reservoir (which was previously pressurized by the boost pressure).
What do you think about it?


Translated on 30-10-2026, 20:37.
Back to top
eike
Guest




 


Free account, no CAN development support

Post16-04-2003, 10:22    Subject: More Torque at Low RPM: How to Get It Quote

Hello,
If I were to trick the engine control unit (ECU) into believing that a boost pressure of 1 bar is present at, for example, 1300 RPM, the engine would receive more fuel, which would result in increased torque. This pressure could be drawn from a reservoir (which was previously fed by the boost pressure).
What do you think about it??

Hello,
Have you ever calculated how much air the engine draws in per minute?
You would probably have to hang a manure tank icon_lol.gif behind the car and use it as a pressure reservoir to deliver the required amounts...
It probably makes more sense to simply adjust the injection quantity to be closer to the soot limit.
Perhaps it would also be an idea to use an electrically powered turbine (a vacuum cleaner operating in blower mode) icon_eek.gif in the lower speed range to increase the boost pressure.
Regards,

Eike.


Translated on 30-10-2026, 20:39.
Back to top
tim27
Guest




 


Free account, no CAN development support

Post16-04-2003, 13:31    Subject: ECU Repair: Troubleshooting and Solutions Quote

Hello,
I only meant that the control unit would simulate an increased pressure, not that the entire engine would be pressurized.
At the pressure connection on the control unit.


Translated on 30-10-2026, 20:40.
Back to top
Uwe
Profi-Schrauber
Profi-Schrauber


Joined: 04/15/2002
Posts: 1004
Karma: +5 / -0   Thank you, like it!
Location: Westerwald

Premium Support

Post16-04-2003, 17:46    Subject: More Torque at Low RPM: How to Get It Quote

Hi!

You want to increase the fuel injection amount based on a falsely indicated higher air mass. You can achieve the same effect by increasing the fuel injection amount for any other reason.
That's exactly what you achieve with chip tuning, power boxes, "10 cent tuning," or other similar methods: you increase the fuel injection amount!
You see, they always do the same thing. These measures bring the injection amount closer to the soot limit. And that "10 cent tuning" actually works quite well, doesn't it?

Best regards,
Uwe.
Kundenservice bedeutet bei Audi, die Kunden so schnell über den Tisch zu ziehen, daß sie die Reibungswärme als Nestwärme empfinden!


Translated on 30-10-2026, 20:41.
Back to top Profile PM
DaBibo
Blaumann
Blaumann


Joined: 09/03/2002
Posts: 62
Karma: +6 / -0   Thank you, like it!


Free account, no CAN development support

Post16-04-2003, 17:51    Subject: SEO: Best Practices for Ranking Higher on Google Quote

But for PD, a different 10-cent tuning would be quite nice icon_smile.gif.


Translated on 30-10-2026, 20:42.
Back to top Profile PM
Uwe
Profi-Schrauber
Profi-Schrauber


Joined: 04/15/2002
Posts: 1004
Karma: +5 / -0   Thank you, like it!
Location: Westerwald

Premium Support

Post16-04-2003, 18:53    Subject: More Torque at Low RPM: How to Get It Quote

Unfortunately, that won't work. The electronics would try to reduce the boost pressure because the driver's input determines how much fuel is injected. Boost pressure is only relevant when it's too low.
Several ideas and attempts have already been posted here regarding fake sensor values, such as the fuel temperature. As far as I know, no PD alternative to the 10-cent tuning has been published here yet.

Best regards,
Uwe
Kundenservice bedeutet bei Audi, die Kunden so schnell über den Tisch zu ziehen, daß sie die Reibungswärme als Nestwärme empfinden!


Translated on 30-10-2026, 20:43.
Back to top Profile PM
New Topic Reply 🔗 ⭐ 🖨 Dieselschrauber - Index » Diesel Engine Technology
Similar articles and topics
Topic Forum
No new posts Torque and driving fun in everyday life Technical Articles
No new posts Diagrams of Torque/Power with VCDS/VAG-COM Technical Articles
No new posts VAG 1.8L R4/5V 125hp (92kW) Naturally Aspirated Gasoline ... Faults & Documentation (Audi, VW, Seat/Cupra, Skoda)
No new posts Torque AJM 6-G Diesel Engine Technology
No new posts Torque Diesel Engine Technology
No new posts Reduce torque On-Board Diagnostics (OBD)
No new posts Axle Nut Torque: Specs & Installation Guide Transmission, Chassis, Body & Interior
Jump to:  
You cannot post new topics in this forum.