my car landcruser 2009 enginemissig

Dear Sir 
Welcome, and thank you for trusting us

misfire usually happens because of:

• a component failure in the ignition system (including abnormal ignition timing advance),
• problems in the fuel system,
• vacuum leaks,
• compression drop in one or more cylinders, or
• problems with key valves or sensors the car computer uses to calculate the correct air-fuel ratio.

to solve the problem please check the car on OBD II device to determine the problem 
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Kind Regards
Engineer mohammad