Santana 3000 environmental inspection However, does unplugging the exhaust pipe affect environmental inspection?

Santana 3000 because the exhaust pipe (that is, the crankcase ventilation device) is behind the throttle, the exhaust gas in the engine crankcase is sucked into the intake pipe and then burned in the cylinder to prevent environmental pollution. After the dipstick is pulled out, fresh air enters the crankcase through the dipstick sleeve and is sucked into the cylinder together with the exhaust gas. Because this part of fresh air is not detected by the air flow meter, it will cause the mixture to be too lean (that is, too much intake air and too little fuel injection), so the idle speed of the engine will shake.