IA3 - Check Resonance Chamber Condition

^ Visually check resonance chamber for a pinched hose connection, or for cracks that allow unfiltered air and moisture to enter the system.

^ Check resonance chamber for other damage.

^ Is the resonance chamber free of damage or poor connections?

YES -- Go to IA4. IA4 - Check Throttle Linkage

NO -- Service or replace the resonance chamber.