My logo 307 engine pollution prevention fault, the computer shows that the intake air is inconsistent, there is something wrong with the mixture, there is a Jay.

Hello, the thick mixture is only one of the reasons. Since the phenomenon of thick and thick mixing has appeared, it means that the correction limit of the computer has been exceeded and there is nothing the computer can do. In the case of more fuel and less oxygen, the mixture will not burn completely in the cylinder, and it will also pollute the spark plug (blackening), leading to poor ignition and vicious cycle, which will affect the unstable idle working condition.

I suggest you find the official maintenance department of the car to check and repair it immediately, because you can't repair it yourself.