We learn how to flash the ECU ourselves using the example of a VAZ 2115I

ECU M74

Commercial firmware Adakt M74

Commercial firmware for Icebreaker M74

Commercial firmware Paulus M74

Commercial firmware for Motor-Master M74
Source:

Firmware for VAZ cars with ECU Bosch M7.9.7 and Bosch M7.9.7+

Purpose:

The firmware set is intended for chip tuning of VAZ cars with ECU Bosch M7.9.7, Bosch M7.9.7+.

• Lada Kalina (engine 11183i 1.6L)
• Lada Kalina (engine 11194i 1.4L)
• VAZ (engine 2104i 1.5L)
• VAZ (engine 2111i 1.5L 8V)
• VAZ (engine 21114i 1.6L 8V)
• VAZ (engine 21124i 1.6L 16V)
• Lada Kalina (engine 21126i 1.6L)
• Lada Priora (engine 21126i 1.6L)
• Niva (engine 21214i 1.7L)
• Niva Chevrolet (engine 2123i 1.7L)

Description:

The firmware has significantly improved dynamics and elasticity. Smooth running and torque reserve at low speeds are ensured. Reduced fuel consumption. The fuel supply cutoff is shifted to a safe value.

There are modifications for any toxicity standards - Euro3, Euro2, Euro0.

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Firmware for VAZ cars with M75 ECU

Purpose:

The firmware set is intended for chip tuning of Lada Priora 1.6L 16V cars with M75 ECU installed.

• Lada Priora (21126-1411020-42)
• Lada Priora (21126-1411020-47)

Description:

In the modified firmware, dynamics and elasticity are improved due to changes in the fuel assembly (fuel-air mixture) and ignition timing (ignition timing). Torque distribution has been optimized by changing the electronic throttle operating algorithm. The “softness” of engine operation in idle and low fill modes has been improved. The system operation algorithm in air conditioning mode has been improved. Changed the speed and fuel cut-off speed.

The firmware is presented in versions for all toxicity standards. Firmware for cars meeting Euro-2 emission standards comes in two versions: IMMO and IMMO OFF.

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We flash the Itelma M74 (Lada Granta) ECU with our own hands

The M7.4 ECU is very easy to program; the contacts to enable programming “B2 and A4” are placed in the first connector; it does not need to be disassembled. You can even change it without removing it from the manina via the OVD-2 connector, but before that you need to apply +12v to these two contacts “B2 and A4” and turn on the ignition.

In order to independently flash the Itelma M74 ECU, which, as we already know, is installed on the Lada Grant, you need to perform the following procedure:

1. Disconnect the battery mass.
2. Remove the ECU block. The connectors are disconnected like this:

We connect the connectors: Connector 1 (large) J1 - switchable voltage (K15) (12V) - second switch B2 - programming permission (12V) - first switch A4 - programming permission (12V) - first switch Connector 2 (Small) G2;G3; G4 - Ground (can be connected to any) H1; H2 - non-switchable voltage (K30) F2 - switchable voltage (K15) (12V) - second switch D2 - K-Line

here's EL. diagram (many people write that they are flashing, but there is no diagram anywhere)

6. It is not recommended to apply voltage to all wires at the same time! It is necessary step by step through a double switch.

7. 4-And so the whole circuit is assembled and the KKL VAG-COM cord is inserted into the USB PC. Here is the voltage supply sequence

Attention ! A window may pop up stating that this software is not for this ECU, but click “OK” anyway

We are waiting for the download to finish (it took me 4 minutes to load) when the window pops up: the operation has been completed successfully.

Firmware for VAZ cars with M73 ECU

Purpose:

The firmware set is intended for chip tuning of VAZ cars with M73 ECU, installed on the entire line of VAZ cars from model years 2008 to 2010 and meeting Euro-3 environmental standards. Firmware with all software identifiers is available, including those with modified hardware implementation.

• VAZ 2114, VAZ 2110, Lada Priora (engine 21114)
• VAZ 2108, VAZ 2110 (engine 21124)
• VAZ "Classic" (engine 21067)
• Lada Kalina (engine 21114)
• Lada Kalina (engine 21119)
• Lada Priora (engine 21126)

Description:

In all modified firmware, the fuel assembly (fuel-air mixture) and ignition timing (ignition timing) are optimized in almost all engine operating modes. The Lada Priora firmware corrected factory errors in cold start calibrations, which made it impossible to do so at temperatures below -20 degrees Celsius. The system input to the IAC (forced idle) has been optimized and a factory error in calibrations has been eliminated, leading to the engine stopping when entering the idle mode after partial load mode. The injection phase and fuel cut-off speed have been changed. Fuel consumption is significantly reduced, with a significant increase in dynamics.

Location and type of engine ECU

Here you can see a view of the M73 for gasoline engines and their location in the car.

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Closed ECU versions

Since the end of 2009, all new versions of the M73 and Mikas-11 ECUs are “closed”, that is, protected from reading and writing the firmware in the usual ways. When you try to read such an ECU through the BootLoader of the processor, the read dump will contain “garbage” in the form of a byte sequence: 9B 00 9B 00 9B 00. When you try to read it using the diagnostic method (without opening the ECU), the bootloader will display the message “Error starting the bootloader.” Please note that in this case you cannot attempt to write firmware to the unit using the usual methods; this may lead to complete inoperability of the ECU! To work with “closed” ECUs, we have developed a special module for the bootloader.

How to remove the Lada Granta ECU step by step instructions

In order to remove the Lada Granta ECU, you will need to perform the following procedure:

1. De-energize the system by removing the terminals from the car battery
2. The ECU controller is located under the glove compartment under the passenger's feet and hidden under the upholstery. The upholstery is attached to the body on the right with a self-tapping screw. We unscrew this screw.
3. Next, we move the sheathing away from the floor with our hands as shown in the figure.
4. Now we bend the soundproofing material to the side
5. After unscrewing the nuts, we move the ECU away from the body.

Now we squeeze the clamp of the wire harness fastening bracket and fold back the bracket.

• We disconnect the connector from the block and similarly disconnect the second harness with wires, after which we remove the ECU from the car. Make the necessary repairs, then install in the reverse order.

Step-by-step instructions for removing the brains of a Lada Granta - video

Firmware for VAZ cars with ECU Bosch M17.9.7 and Bosch ME17.9.7

Purpose:

The firmware set is intended for chip tuning of VAZ cars with Bosch M17.9.7 and Bosch ME17.9.7 ECUs.

• Lada Kalina (engine 11194i 1.4L)
• Lada Kalina (engine 21126i 1.6L)
• Lada Priora (engine 21126i 1.6L)
• Niva (engine 21214i 1.6L)

Description:

The firmware has significantly improved dynamics and elasticity. Smooth running and torque reserve at low speeds are ensured. Reduced fuel consumption. The fuel supply cutoff is shifted to a safe value.

Location and type of engine ECU

Here you can see the type of electronic control units Bosch M17.9.7 and Bosch ME17.9.7 , for gasoline engines and their location in the car.

Chip tuning of Lada cars with Bosch ME19.9.7 ECU in Tomsk / Autoelectrics Service

The links below show some of our work on chip tuning, the above described Bosch ME17.9.7 :

• Lada Priora 1.6L (Bosch ME17.9.7). Chip tuning

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