Number of fast car fault lights. The combustion system is too thick. Fault 00 1.

Too rich combustion system means that the engine injects too much fuel. The fuel injection quantity is usually determined by the intake air quantity (the throttle valve is controlled by the throttle opening). For this fault, check whether the air intake sensor is normal. Check whether the fuel injector is normal. (If the fuel injector spool gets stuck and is not closed tightly, there will be too much fuel.