What's wrong with the Toyota Sequoia hot car without a start signal?

Carbon deposit, carbon canister solenoid valve damaged.

1, at high temperature, carbon deposit has a strong adsorption effect on fuel. If there is too much carbon deposit in the piston, throttle and intake pipe, it will absorb some fuel, resulting in less oil and more air, which will affect the engine start, so it is necessary to clean up the carbon deposit in time.

2. The damage of the electromagnetic valve of the carbon canister will prevent gasoline vapor from entering the automobile engine for combustion. If the valve is damaged to the extent that it can't be closed, it will be in the normally open mode, which will lead to the high concentration of mixed gas and affect the start-up. Therefore, it is necessary to timely repair the solenoid valve of the carbon canister.