Suzuki Tianyu waste gas valve sometimes clicks, and sometimes it doesn't.

Loose fittings. Changan Suzuki Tianyu waste gas valve is located at the joint of throttle and cylinder head of intake system. Suzuki Tianyu sewage valve sometimes clicks, sometimes it doesn't, because the fittings are loose. The function of waste gas valve is to control the amount of waste gas entering the intake manifold, so that a certain amount of waste gas flows into the intake manifold for recirculation.