It is simply a small piece of foam that Merc installs in the IAC entrance opening in the throttle body to reduce IAC noise (hissing) when the IAC valve is activated. We take them out and do not replace them since they wear out and are sucked into the IAC, causing damage to an expensive IAC motor. The duty cycle mentioned is a phrase used to describe the opening and closing rate of the IAC in operation, as it is well-continually changing between open and closed to change the quantity of air the idle of the motor is feeding the engine to keep the idle stable at around 650RPMs. The ECM is in charge of the IAC.
Key Features:
- These silencers dampen the sound of exhaust from many sorts of internal combustion engines, including gasoline, diesel, and natural gas.
- It communicates with the vehicle's ECU to adjust airflow to the engine and guarantee smooth idling.
- It is a small piece of foam that Merc inserts into the IAC entrance port in the throttle body to reduce IAC noise.
Product Details:
- SKU: RM35-863829
- Weight: 0.02 LBS
- Unit of Measure: EA
