ATEGO Acceleration Problem

Hello Mate,
Following all keys lost situation, i have just programmed a transponder key on a MERCEDES ATEGO using the dump read from the Memory Device 93c56 fitted in the Engine ECU.As result, the Engine starts pretty well and suddenly the RPM will increase without any action on the accelerator pedal and consequently upon acceleration engine will not run above 1200 RPM.
Please mate with this explained, what can be done to restore acceleration on this truck


Best regards

 

Mate Thanks a lot for your reply.In fact, with this condition, having tried to diagnose using the STAR DIAGNOSTIC.It would not communicate with the MR.
Another aspect i have not mentioned here is that when this happen and you disconnect the FR socket, Engine will accelerate above 1200 RPM.
Furthermore, i use to read the 93c56 memory storing the Key data in circuit, without Di-soldering it


Thanks

 

Dear Pablo,
I am really a Newbie in this forum but having gone through some posts here where you explained things clearly and straight forward, it is clear that you are highly knowledgeable regarding the Mercedes ECU MR.
This said, i would like to find out if you have put in writing these knowledge which can help me understand the following or if you have in UKRAINE there companies that can provide this training

- Identification of all Electronic Components in ECU, (TEMIC PLD)
- Understanding of the function of all electronic components
- Testing Electronic Components
- Components under full load not working
- find the faulty components In-circuit & In-circuit testing
- Common faulty components in Temic PLD
- Communication Errors & faults in Temic
- Cylinder errors & Faults
- How to convert ECU V6 to V8, STEP BY STEP

Best Regards

 

Thanks Mate for your interesting reply.

Morover,regarding your experience with these ECUs is it possible to foreseen the most likely engine symptoms or engine driveability that will be experienced if each of the components you have just mentioned is suspected of being defective?


1) MOSFET

Engine symptoms:

2) Transistors

Engine symptoms:

3) EPROM

Engine symptoms:

4) Flash

Engine symptoms:


5) Corrosion

Engine symptoms:


Warms Regards