The key chip will be bad, but the bad may be very small, the so-called chip is the manufacturer of a password match to the ignition lock chip and the ignition system is one-to-one correspondence, even if the key is inserted in but the chip does not match, the chip can be said to be just a passcode point does not fire, can not start it may be the chip problem to start a good sudden flame out with the chip is nothing It may be a problem with the fuel supply or intake, check the gasoline pump and throttle, the oil circuit and the intake