Hey apexi made a ecu to fit the subaru right, call a power fc and it comes wit a handheld device called a commander which is used to program, now a friend of mines had is base set from the manufacturer but his bro went and mest up the settings and now they ecu is flooding the engine,

is there n e way to reset the ecu to is factory settings?

the manual came in japanese

I don't have any personal experience with the Power FC, but just as with any engine control device, I'd suggest being extremely careful when playing with the maps, and strongly suggest not to mess with a/f unless you have a wideband O2 sensor, an EGT gauge, and know what you're doing. If your friend is in northern california, I'd be happy to take a look at it for him.

Thanks and good luck