sr20 won't rev past 2500 rpm

i started up my car today and let it warm up for a bit. i tried revving it up but the bugger won’t rev past 2500 rpm…where would i possibly start.
i have a FMIC, sohc maf from KAE, walbro pump. everything else is stock.
help would be greatly appreciated.

Sounds potentially like a MAF reading issue, try cleaning it and checking the connections.

really sounds like MAF to me aswell.

I’ll give you $50 if it ISN’T the MAF. Check the plug first, might have just gotten knocked loose. I had that happen to me while installing a new air filter, couldn’t figure out why the car was running like crap…

ok, thank you for the opinion guys, i will check it out as soon as possible. keep you updated