System Inspection
^ Visually inspect components. Look for:- Loose, leaking, pinched, kinked, or otherwise damaged coolant and air hoses and connections.
- Loose fasteners, hose clamps.
- White smoke from tailpipe.
^ Check coolant and air hoses to determine extent of damage or looseness.
^ Do all visual inspections check OK?
YES -- Proceed to Pinpoint Tests. BPA1 - Check IAC Valve Resistance
NO -- Repair Concern(s) check to see if original problem still there, if so return to Testing and inspection/Flow of Diagnosis. Flow of Diagnosis