aight i just recently installed the jrsc on my ep3.. and it runs good pulls hard but when i let off gas from switching gears while driving normal the rpms hang there instead of dropping.. also at a stop light my car idles high about 2000 then comes down to 1200 bounces back up to 15 1600 for a secound then come down to idle normal.. i checked all lines and everything is good...

i did reuse the intake gasket could that be the problem????