Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

Connecting an Additional ECU for Engine Power Increase

Model: Volvo S40 MK 1 - Years: 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
Part: Accessory kit

See other generations:
This video is currently unavailable

An additional replacement ECU is commonly used to increase engine power by regulating the injection system, pressures, and stoichiometric ratios. To connect it to the connector at the end of the rail, remove the engine cover.

Disconnect the original connector and connect the additional ECU's connector (already positioned earlier, after finding the best cable routing) which sends the correct signals to the original ECU via the interface that connects to the original connector.

At this point, cover the engine with the cover and the car will be ready.


Updated on 8 February 2026 by ScegliAuto


Related tutorials

Where to find the control unit of the anti-theft system of the Volvo S40
Where to find the control unit of the anti-theft system of the Volvo S40
Volvo S40 (2004-2012 / MK 2) Today we will discover the instructions that will allow us to locate the central unit of the anti-theft system of the Volvo S40. First of all, we ope…
Replacement of Front Headlight Bulb
Replacement of Front Headlight Bulb
Volvo S40 (2004-2012 / MK 2) To replace the front headlight bulb, it is advisable to remove the headlight from the vehicle to facilitate the operation. Once the front headlight i…
How to Replace the Hazard Light Button
How to Replace the Hazard Light Button
Volvo S40 (1995-2004 / MK 1) This brief video illustrates the procedure to replace the hazard light button on a Volvo S40 or V40. First, remove the three air conditioning control…

How to open the bonnet on a Volkswagen Golf?

In this tutorial, you will see how to open the bonnet on a Volkswagen Golf MK4. This is a very simple operation that follows the standard procedure. First, open the driver's door, then locate the lever in the lower left area and pull it. Next, move to the front of the vehicle, lift the bonnet slightly, and find the second lever located just above the Volkswagen logo. At this point, simply pull it towards you, fully open the bonnet, and secure it with the prop rod. To close it, gently push it down.

Watch the video!


by ScegliAuto

More videos