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!
10 wildly expensive Lego sets for the builder who has everything. Lego bricks do not come cheap. Just ask Zhao, the Chinese artist whose Lego sculpture worth $15,000 fell victim to the clumsiness of a small child at a Lego Expo on Sunday. The sculpture, a brick version of Nick from the animated film Zootopia, fell to pieces within an hour of the exhibit's opening.