China Naming Network - Almanac query - Passat intake valve does not return.

Passat intake valve does not return.

Excuse me, your problem is Passat's throttle does not return. Maybe the throttle opening screw is too tight.

Throttle blockage may be caused by over-tightening the throttle opening screw or insufficient lubrication of internal parts. You can adjust the throttle opening screw first, and then add some oil to the throttle spring and internal parts for lubrication.