During the cold start, the car shaking is a common problem of gasoline cars。Cold initiative or the jitter of the empty waiting car is the most fundamental reason is that the burning in the cylinder is not good。Burning is not good，The power provided by the car is not enough，The car shakes。Example of an image，Assuming the horse's foal out100The force of the division can pull the car, but if only it takes out606216_6232

The first problem faced when the vehicle is low when the vehicle is low. The first problem is low temperature，The temperature in the engine is not enough，The temperature of fuel and lubricating oil is not enough，Therefore，The larger the gap between the spark plug，The smaller the ignition energy。Poor fuel atomization at low temperature，fuel requires higher ignition energy，Use the car for a long time，The ignition gap of the spark plug is easy to get larger，Caused the ignition energy seabet myto decrease，thus affecting power，Make the car jitter。Another，ignition coil aging、The high -voltage line of the spark plug or leakage，It can also lead to a reduction of ignition energy。

seabet appHybrid ratio is not appropriate

Oil and gas hybrid ratio is not allowed，Exist in the control of the ring and closed -loop control。In a closed -loop -controlled car，The minimum working temperature of the oxygen sensor is370℃If the car just started, the temperature in the exhaust pipe cannot reach370 ℃so the oxygen sensor does not work. at this timeECUJudgment error，It is mixed with oil and gas through the execution agency、Control of the ignition time appears error，thereby reducing the power output of the car，Judging phenomenon。

2. Vender and intake tract carbon

If carbon accumulation occurs in the valve and airway in the engine，Because the accumulation of carbon can absorb an appropriate amount of fuel (just like the water flows across the river embankment，The soil is the same as absorbing water)，ECUJudging errors.

The actual control of the computer sprays the assumption100oil and gas, but only those who actually entered the cylinder90Part (10Absorbing carbon), then even if the remaining90The mixed oil and gas is fully burned，The dynamicity of the same needs，The phenomenon of jitter is inevitable。

3. Different working conditions of each cylinder

Same，Spark plugs in multi -cylinder machines will also have the above problems。After using it for a long time，The ignition gap and time control of the spark plug will have different，butECUCan't diagnose this deviation，Still waiting for "them" to be equal，This has seabet myerrors in actual and theoretical，As a result, the power generated by the cylinder is small，will lead to jitter。

After using the engine for a long time，The gap between each cylinder set and the piston will also appear or large or small，In the same gap，Small gaps。When the cold starts，No good motor oil lubrication，The cylinder with a large gap can easily leak a certain high temperature gas from the gap，to reduce the power output。

4. Water temperature sensor fails

If you have a fever，But the reading of the temperature table is normal，What will happen? The water temperature sensor was one of the important basis for computer to judge the engine conditions at that time。If the engine is cold, the temperature is below zero10Celsius, but the sensor "tells" the computer "now temperature is20degrees Celsius ", then the computer will press20Work conditions of the degree Celsius injection，Of course, the amount of oil is small，Of course, the jitter is natural。

5. Other factors

The air flow meter is dirty, resulting in a decrease in air intake;EGR(exhaust gas recycling) The working condition of the valve is not good，Introduction to exhaust gas at idling; idle motor controls bypassing airway，to adjust the amount of air intake，If the voltage is low, the work may not be in place; the oil products are too poor，Can't reach the corresponding heat value，The power output caused by the combustion is small。The above four factors can cause the burning of a certain cylinder when the cold start or the empty stand is not good，thus having the engine。