hey guys i've got a 1989 civic dx auto stock motor the problem is it starts fine but if i let my foot off the gas it dies won't idle unless i keep on the gas anyone please help

 

check vaccum,ignition, hows ur exhaust?

 

well it's got new alternator, new rad, new battery, new muffler i was wondering how do i go about checking for vaccum leaks, ignition what to check for in my exhaust like a plug cat? or is there a walk through on where should i start checking?

 

Please anyone?

 

dis, spark plug wires,plugs