Why does the Nissan Paladin idle shake?

[StellaLynn]

Nissan Paladin idle shaking may be caused by severe engine carbon deposits or unstable oil pressure. Severe engine carbon deposits: When there is excessive carbon buildup, the gasoline sprayed by the cold start injector can be largely absorbed by the carbon deposits, resulting in an overly lean mixture during cold starts. This makes starting difficult. After the engine starts, the gasoline adsorbed on the carbon deposits is then sucked into the cylinder by the engine's vacuum and burned, making the mixture too rich. The engine's combustible mixture alternates between being too lean and too rich, causing idle shaking after a cold start. Unstable oil pressure: If the fuel pump's supply pressure is abnormal or if the intake pressure sensor values are incorrect or malfunctioning, it can cause the vehicle to shake. The solution is to check the oil pressure and replace components if necessary.