The turbocharging air leakage of Ea888 engine is too rich and promising.

1. When the mixture in the fuel measuring system is too thin or too rich, the throttle will be stuck in the idle position.

2. The 1 cylinder system with leaking exhaust pipe is too thin. The waste gas valve cover of oil-gas separator is soft and aging, cracking and leaking.

3. Carry out atomization test of the nozzle or clean the nozzle.

4. Replace the exhaust pipe. The valve cover of waste gas valve of oil-gas separator is soft and aging, so replace the waste gas valve of oil-gas separator.