What should I do if the throttle idle speed is high after Jetta cleaning?

1, if it is lower than 1200~ 1500 rpm, the possible reason is that there is something wrong with the oil quality. The solution is relatively simple: use a fuel-powered catalyst. This kind of products can improve the cleanliness level of fuel, improve the combustion energy of fuel, and have immediate effects on solving the problem of engine idle stop, solving the problem of excessive engine idle speed and reducing fuel consumption. But at present, there is no ability to produce this kind of products in China, and the better imported products are American multi-channel films. Imported products are a little expensive, but the quality is guaranteed, so they are also worth using.

2. If the engine idle speed is above 1500 rpm, or even higher, go to 4S to check it. There may be something wrong with the mechanical system. Repair early and be good early.