Quote:
Originally Posted by Spaceywilly
Do you mean Subaru ECUs? They are the same between JDM and USDM AFAIK, there is only AVCS and non AVCS ECUs that you have to watch out for. You can get a JDM EJ207 and run it off a 2002 USDM WRX ECU, you just have to make your own AVCS wiring bundle and obviously a new ROM.
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That agrees with what I know and what I said actually. It's isn't as simple as a Honda B series swap, aka plug and play, because the wiring
is different but it's limited to cutting and splicing a few wires and extending the harness and still nowhere near as complicated as a completely unrelated ECU pinout.
Quote:
Originally Posted by old greg
Yep. OEMs never design their own ECUs, it's all outsourced to suppliers like Denso, Delphi, Bosch, Magneti Marelli, etc. Look at the labels on any ECU, there will be a logo for the vehicle manufacturer, and a logo for the ECU manufacturer.
To the best of my knowledge, Denso supplies ECUs for all of the turbo Subarus and some of the N/A ones as well. On top of that Denso is a part of the Toyota Group, so it seems like a pretty safe bet that they supply the majority of Toyota/Lexus ECUs as well (I don't have any first hand knowledge though).
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I wouldn't know since I am not that knowledgeable about this but suggesting that ECUs are compatible simply because they come from the same supplier is not accurate.
Eg. even across a small manufacturer like Subaru the ECUs are not all designed to be compatible especially in different markets where they have offer different engines.
Am I right?