Cadillac CTS 08 often reports the code: Please check the traction system; Engine power reduction

Cadillac CTS 08 often reports the code: Please check the traction system; When the engine power is reduced by 20%, there will be several kinds of engine jitter, such as starting jitter, cold start, insufficient three-way catalytic temperature, serious engine carbon deposition and so on. The most common reason for vehicle jitter is that the throttle valve is too dirty or the nozzle has too much carbon deposit, because the gasoline adsorbed on the carbon deposit after landing is sucked into the cylinder by the engine for combustion, and the combustible mixture of the engine is sometimes rare and thick, which leads to idling jitter after cold start. Solution: The company cleans the oil circuit, and checks whether the idle motor has carbon deposit, so it should be cleaned.