Hey guys, I've had the GM Hotcam in my car for around 4 years. Idles fine with no tuning. Car runs strong. Today when I got in I started it and it wasnt wanting to idle. It would surge a little but stay around 400 rpms. It usually idles right at 1k no problems. I had to keep hitting the gas at stoplights to keep the car running.

When I got to work it died. I started it up and it idled right at 1k. I gave it some gas while it was parked and it surged and died. Any ideas? I'm hoping it is just spark plugs. I changed the plugs when I did the cam install and would say I've got around 30k miles on the car since the cam swap. Any help would be greatly appreciated.

 

Do you have a code? check opereation on idle air control they usually go bad and cause this, and also check for false air(vacuum leak) on the intake side.

 

plugs,wires first, especially since they have 30k

 

Bad IAC, plugs, wires, coil, etc.