k well my 97 z24 5 speed was running fine untell i tryed to do the ho manifold swap when i did it i put the ho mainfold on and hooked every thing up but didnt plug the egr so when i was done i took it out every thing was perfect. BUT a couple days later it started runing really bad when i would turn on the AC and it would like stall and studder when i was just crusing down the road with the ac on . so i thought mabey somthings wrong with the manifold so i put the EGR back on and put the stock manifold on and it still does the same thing when iam driving at one constant speed with the AC on it will like stall and studder sometimes when iam at a stop light and stoped it will start to bogg down to like 500rpm then it goes back to normal. really need help i was thinking mabey its the IAC idle air controler ????? what do you guys think cuz i dont want to spend money on somthing that doesnt need to be done PS IT DOES IT IF I TURN THE FAN OR ANY HEATER ON OR THE AC SOME ONE PLEASE HELP i cheacked all vac lines to made sure everthing was sealed good idk what else to do ????????????????????????????????????? wrong forum i know but no one in maintenance answerd and i need to find out what the problem is

sound like a vaccuu, problem. Re-check all your lines for cracks, holes, and make sure their all connected to the right places.


-Chris