Does Haval h2 need a cleaning throttle?

No need. Haval h2 cleaning throttle valve doesn't need to be matched, because Haval h2 cleaning throttle valve belongs to cable throttle valve, which has one more component than electronic one, namely idle motor. The electronic throttle has no idle motor. When the fuel filler door is at idle speed, the cable throttle door is completely closed, and the air required for idle speed enters from the idle motor without matching.