I was driving back home from a friends house, and all of a sudden when I'm waiting at the stoplight, the CEL pops up and my idle acts really weird. It wouldn't go down past 1500rpm. It just bobbed up and down at 1500rpm. The sound was a bit weird as well.

This scared me, so I parked on the side of the street and turned the car off. I jumped the ecu and got CEL 14.

CEL 14 = IAC Valve (Idle Air Control) defective circuit or unplugged / defective sensor.

After I cooled down the motor for a minute or two, I turned the car back on.

It seemed fine. No problem whatsoever, and rides normally. I resetted the ECU and erased the CEL on the dash.

Can anyone explain what happened? What exactly is CEL 14, and what causes this? Should I worry? Let me know! Thanks.

 

remove your IACV and blast that sucker with some carb cleaner.

 

what causes this to happen?

I've also noticed my idle acting wierd ever since I got the Intake Manifold and Cams in.

It runs and sounds really smooth, and the Idle is smooth, but sometimes it fluctuates from 1000rpm to 1500rpm, then back down to 800rpm. Doesn't bother me, but just curious.

 

try jumping wires A9 and A23 you should hear a clicking sound from the IACV if it's good. I'm betting it's clogged.