so i recently got a new muffler and its bigger and louder .then the stock Cherokee. but sometimes while im driving my jeep will idle real low and almost die . i replaced my intake and exhaust manifold gasket. and i cleaned out my throttle body.
it also isn't as quick on the get up and go from a stop it feels like its getting to much fuel ? and after awhile of my foot being on the gas it kicks in and gets up and go's but still lags. i clean my IAC sensor on the throttle body .im running Bosch plat.2 spark plugs and Bosch wires, new rotor, and i about to go take it through emissions .
any thoughts on what it could be ?