i recently did a bunch of mods to my z, it ran perfect using a/c heat prior so i'm assuming one of the mods is the issue. Basically when ever i use the heat or AC now whether warmed up or cold start my z become irratic idle and if you try and drive it with either on it will stall every time you push in the clutch or slow down, please help mods i did are as follows:

CAI (jwt pop) short ram
front and rear wilwood big brake kit with stainless lines
short shifter and stainless clutch line
full cusco suspention (doubt this is the issue)

i've checked head to toe no vacuum leaks and if the ac or heat is off runs perfect only goes irractic when i turn on ac or heat, could the ribbon cable from the ac panel be the culprit some how?

 

Welcome. THe only mod that makes a difference is “CAI (jwt pop) short ram.”

Keep in mind that Air conditioning should "bump" idle.
Disconnecting the battery and idle is finicky. If you disconnected the battery recently, give the idle a couple of days to reset.

Interesting that you mention "disengage the clutch" and idle. Not certain how this happens, buy think it is the key to the problem.

 

thanks for the info, i'm also thinking the intake or the shifter install is responcible but not sure why, the shift required the ribbon for the panel to be removed i was gentle as can be but may have still damaged it some how anyone know if a way to check it, also the CAI i didn't diconnect the battery when i changed it maybe thats the issue i'll remove the cable let it sit for an hour or so and reconnect maybe it will reset the computer