2003 CTS 3.2
Okay I've been around the block a few times and I've built cars from the ground up before but this is my first interaction with a Cadillac. It's a 2003 Cadillac CTS 3.2 l luxury sport rear wheel drive The onboard diagnostic computer in the stereo told me it had a bad IAC. But I've been told there is no idle air control valve on this car how could it say IAC valve needs servicing across the stereo screen when it doesn't have one ? I know it has a misfire on some of the three and five and I'm going to replace spark plugs and coils on both sides but it says idle air control valve malfunctioning why would it say that if it doesn't have one?