Does the throttle really need cleaning?

Old cars, cable throttles and throttles generally have separate idle ports.

With this design, dirty throttle plate or valve body will not affect idle speed.

At present, many cars, electronic throttles, in order to save money, only open the throttle at a small angle to provide idle air intake, through a small gap between the valve plate and the pipeline. This dirty position certainly has an impact.

In fact, you should know that it really needs cleaning, but it doesn't need cleaning-the only place that needs cleaning is the joint between the valve plate edge and the pipeline.

Really want to be lazy

Blow with compressed air.