i jus bought an ecu from a guy who said its a chipped p75, when i got it, it turns out to be a pt3.....well i put it in my hatch to run my b18b1 motor and it runs weird, plus redlines at 6000...i didnt disconnect the battery or nothing, jus swapped ecu's and started it up....

 

so no one knows why my car wouldnt rev past 6000 rpm?