Will Volvo xc60 exhaust emission system affect the fuel pressure sensor to be too high?

Excessive pressure in the fuel pressure regulator will affect fuel consumption. As follows: 1, which will increase the fuel injection quantity of the injector; If the pressure of the fuel pressure regulator is too high, it will increase the fuel injection quantity of the injector and lead to high emission.

2. Check the fuel pump. If there is no problem, check whether the fuel pressure regulator is stuck and whether the vacuum tube connected with it is leaking or blocked. If the valve is blocked and leaks, the fuel will not open and the fuel pressure is too high.

3. As a result, the fuel consumption increases, and the ECU passively adjusts the fuel injection amount. The excessive pressure of the fuel pressure regulator reduces the oil return, and the fuel system always keeps high pressure, so the fuel injection will inevitably increase. When the throttle opening is fixed, the fuel consumption will certainly increase if the air remains unchanged, the fuel quantity increases and the mixture concentration increases.