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the ecu has no speed / fuel cut, optimized ignition fuel / curves, redline is slightly raised.
it was on a stock 1jz-gte auto, but i have read / researched that ACCESS ecu's paired with an AFC are useful to right at/around 500whp, after that it's wise to go with a standalone unit anyway.
Guys, it was on a stock 1jz...its set up for a stock 1jz.. its tuned for stock injectors...nothing absurd I'm sure but a significant upgrade to the stock ecu
I would imagine the only way to really know for sure is if you own a stock 1jz and upgrade to this. I know for a fact that this ecu had no speed limit or boost/fuel cut. Not sure about the timing and fuel and boost improvements. its from an auto BONE STOCK 1jz SOARER .C