The O2 sensor is mounted in the exhaust manifold to monitor how much unburned oxygen is in the exhaust as the exhaust exits the engine. Monitoring oxygen levels in the exhaust is a way of gauging the fuel mixture. It tells the computer if the fuel mixture is burning rich (less oxygen) or lean (more oxygen).
There is no other way to say it: Legoland is the worst value for money of any theme park bar none. It's hard to know where to start: the Â£132 admission fee for a family of four, the Â£15 per person for the queue jumping system (that's free at all Disney parks), or the cynical Â£2 charge to leave the car park!
You can rent entire lands such as Adventureland for around $250,000.00 and upâ. Keep in mind, the $50k is just for one ride. Multiply that by every ride/attraction in the park (62 as of March 2014) and adjust for inflation and you might get a better idea of costs.