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Mountain Main · 03-21-2003, 10:41 AM

IAC Intake Air Change is old term for ACT. It is a sensor that is threaded into the intake manifold. It reads the Air temperature going in to the intake manifold. IAB is a Idle Air Bypass. It is right next to the throtle body. It lets air in that is not metered by the MAF. The Idle Air Bypass is regulated by the computer.

Sorry for using old terms it confusses people.

03-21-2003, 10:41 AM	#12
Mountain Main Registered Member Join Date: Feb 2003 Location: Minturn, CO 81645 Posts: 109	Old Term IAC Intake Air Change is old term for ACT. It is a sensor that is threaded into the intake manifold. It reads the Air temperature going in to the intake manifold. IAB is a Idle Air Bypass. It is right next to the throtle body. It lets air in that is not metered by the MAF. The Idle Air Bypass is regulated by the computer. Sorry for using old terms it confusses people.