TunerPro User Forum

Posted: **Fri Oct 08, 2010 5:00 pm**

Hello I have a bmw 318 model 1994 with Bosch Motronic 1.7 ECU 0261200950, after 20 minutes running the ecu takes high temperature burning hands. The ignition pulse measured with an oscilloscope is 18.5 ms at idle, in the 4 coils and 4 bases of driver transistors.
It may be normal? .
Someone can help me solve this problem or tell me where I may be wrong?
I read the file of the 27C256 eprom checksum is B0F32 will corrrecto? . Sorry, my English is bad.
Thank you very much

Posted: **Tue Oct 12, 2010 10:22 am**

Ecus have transistors and drivers, they run hot. As for the chip size I am not shure if 27c256 or 27c512

Posted: **Mon Oct 18, 2010 4:20 pm**

27c256 stock chip size

Posted: **Sat Mar 26, 2022 9:25 pm**

angmar wrote: ↑Fri Oct 08, 2010 5:00 pm Hello I have a bmw 318 model 1994 with Bosch Motronic 1.7 ECU 0261200950, after 20 minutes running the ecu takes high temperature burning hands. The ignition pulse measured with an oscilloscope is 18.5 ms at idle, in the 4 coils and 4 bases of driver transistors.
It may be normal? .
Someone can help me solve this problem or tell me where I may be wrong?
I read the file of the 27C256 eprom checksum is B0F32 will corrrecto? . Sorry, my English is bad.
Thank you very much

Do you have xdf file? Can you sent to me please

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