S80 What is the sound of running water when Morinaga Makoto is full of oil?

There are several reasons why your car lacks power:

First, clean the lower throttle and fuel injection head.

Second, one cylinder can't work. Check whether the spark plug gap, cylinder line and ignition coil are leaking oil, whether the fuel injection head is stuck or poorly atomized, and whether the cylinder pressure can reach normal pressure.

Third, the low oil pressure can't meet the injection demand, so it is necessary to check and replace the gasoline pump, gasoline filter element and oil return valve.

Fourth, the blockage of the exhaust pipe leads to poor exhaust and insufficient power, so it is necessary to check the three-way catalytic converter.

Fifth, look at the fault code with the decoder and repair it according to the fault code. I suggest you go to a regular repair shop for inspection and maintenance. I'm happy to answer your question,