recently fitted an sr20 from a s14a to an s13 ran fine to begin with has now developed a bizzare issue. revs freely to 3000rpm then drops to 1500 on wot & splutters. been on a diognostic no faults come up.
did show afm @ 77% on live data should apparently be 100%
but i know not what any of that means lol.
advice would be greatly appreciated