The 49 1qe fault light of Great Wall Engine is always on.

First of all, when your fault light is on, you should go to the maintenance station and read the fault code with a scan tool, so as to find the fault source better.

Here are a few possible questions, but whether they are specific or not, you should go to the maintenance station and confirm them with the diagnostic instrument:

1. The cylinder is missing. Please check whether the idle speed jitter is serious. If so, it is estimated that one cylinder is probably missing. Check the ignition coil, high voltage line, spark plug and fuel injector. You ran for 30w. These things should have been replaced a long time ago.

2. The aging of idle stepper motor will always lead to out-of-step, and it is easy to cause clutch stall when driving. Check the stepper motor and clean the throttle.

3. The problem of air conditioning electronic fan, because your car is not installed, so don't install it at will. If you add an electronic fan, the electronic control program will not change accordingly, which will cause the engine to be unable to make corresponding compensation when the electronic fan works, resulting in the abnormal operation of the engine.

It's normal for a 30W car to be in poor condition. You should go to the maintenance station to have a good check-up and be responsible for your life.