What happened to the increase in braking speed of Reiz cool car?

The problem should be the idle speed control system, that is, the throttle is too dirty or the idle speed and ignition timing are beyond the standard range. According to the control system and daily maintenance experience of Reiz engine, the main reasons for this idle fluctuation are: the throttle valve is too dirty, due to frequent starting, short-distance driving, low temperature and low speed, poor fuel combustion quality, there will be too much carbon and dirt on the throttle valve and the surrounding air intake, and the cross-sectional area of the air passage will change, which makes the control unit unable to accurately control the idle intake volume, leading to idle fluctuation caused by abnormal combustion.

The leakage of intake manifold and valve, when the air, gasoline vapor and combustion waste gas that should not enter the intake manifold, causes the mixture to be too rich or too thin, which makes the engine burn abnormally and also forms idle fluctuation. Memory of idle speed value, poor contact of throttle control harness when ignition switch is turned on, disassembly and assembly of throttle valve, if the battery is parked for too long or the battery stack head is disconnected for too long, the memory value of idle speed stored in engine control unit will be lost, resulting in fluctuation of idle speed value. According to the current control technology, vehicle condition and use environment of Reiz models, it is recommended that you go to a maintenance franchise store for maintenance inspection. It should be necessary to clean a throttle valve, and at the same time check the working state of the injectors, because their working environment and maintenance cycle are synchronized.