When should the MAF sensor be cleaned?

[Wave24/7]

you DIY the cleaning of the throttle body or in a shop? how about the intake manifold, have you tried cleaning it too?

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DIY the TB by using an old rug, tb cleaner and a toothbrush.
Change the air filter every year, I just vacuum mine and reuse it. Then change every other year.
Clean MAF sensor, maybe every year or two. It depends how often you drive the car or if you notice any change in fc and or idling.