The car engine fault light is on: What does it mean to display TEC?

The automobile engine fault light shows that TEC is a throttle fault.

Throttle is one of the most important components of EFI automobile engine system. The upper part of the throttle is the air filter and the lower part is the cylinder block, which is a very important position of the automobile engine. The car accelerates strongly, and a clean throttle can reduce fuel consumption and make the engine output strong.

The carbon deposit produced in the process of gasoline combustion will affect the throttle valve because of the negative pressure of the automobile engine. Improper closing of the throttle valve device will increase the intake air and fuel consumption of the automobile, which will directly lead to the idling jitter of the automobile engine. Therefore, cleaning the throttle regularly is a necessary condition to ensure the normal operation of the engine.

Extended data:

Precautions for using throttle valve are as follows:

1, let off gas, oil will be heated and volatilized in use. The longer the service time, the higher the temperature and the stronger the volatilization. The compressed gas in the cylinder will squeeze into the crankcase through the gap of the piston ring, so there must be a channel for the gas to escape, otherwise the oil bottom will form a positive pressure.

2, negative pressure pumping, crankcase ventilation pipe is connected to the throttle, on the one hand, it is environmental protection requirements, on the other hand, it is to use the negative pressure of intake air to pump gas from the crankcase. When the oily steam reaches the intake pipe, it becomes cold, and the oil inside will condense on the intake and throttle valve, and then the carbon deposited in the steam will also deposit in these parts.

Engine jitter, increased fuel consumption and weak acceleration are all caused by the throttle.

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