1G Can anyone identify this ECU?

[Bluflame252]

Hey guys need some help, I have a 90 Eclipse FWD with a cyclone motor swap and was told it had a modified ECU, can't find anything matching the numbers

MD128625
JE33lA979A
Chip is MH6111 E266
Plug is 4478A

 

[serviceguy]

based on the part number is a 5/88 to 6/90 D22A (2.0l Turbo) 5 Speed, Federal Emissions FWD ECU ( source http://simon.chi.il.us/ECU/ECUID.html )

It would be best if you could post a picture in order to identify anything out of the ordinary.

 

[Bluflame252]

I believe its a diff board inside the FWD case cause the number on the chip should be E705A for a 88-90 fwd turbo and mine is E266 which I can't find any info for, could it be the JDM ECU modified?

 

[synthetek]

Is the ECU socketed?

 

[Bluflame252]

No socket

 

[Bluflame252]

Appears like the 4 gray resistors in between those green blocks have been changed

 

[serviceguy]

I suspect the grey resistors that you mentioned are in fact the capacitors that are changed simply a maintenance or repair, not as a 'modification.

Is the E266 on a separate chip other than the processor (the E705A should be where the E742 is on the picture below).

Is the E742 chip even there? If i had to take a guess I would say it's a stock non EPROM ECU, the E705A would be there only if you have an EPROM ECU.

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[Bluflame252]

The 4 I'm referring to are in the upper right corner of that picture, 2 of the caps in the middle were changed to 105 c