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View Full Version : Denso ECU help



Yot99
11th June, 2019, 09:09 PM
Hello! Im looking for some help relating to tuning a denso ECU.

I have an older toyota ECU (1998) and I believe I have figured out what the main processor is (TMP97CW42). The chip itself reads 97CW42AF-B051. The board it's on also has a 10 pin (2x5) port that says CN1 (BDM connection?).
I'm basically trying to figure out whether or not I can read files off of this ECU using something like a Ktag or similar. Any help or information at all would be greatly appreciated! Thanks!

and fwiw there is a second chip that reads MG489 and 10T16 but I believe it is a proprietary denso unit and I can't find anything on it