What about changing Santana oil to gas?

I have been driving a taxi with Fukang 988 for more than ten years. Judging from your description, it should be a phenomenon that a cylinder pipeline is banging because of wildfire. Because the mixture in the spark plug weak cylinder is not completely burned, the signal received by the oxygen sensor after exhaust is that the mixture is too rich, and the fault light is on because the oxygen sensor can not be adjusted.

The sensor behind the throttle is the throttle working temperature sensor, and the cold car preheating plays a role. The air temperature sensor is at the top of the air cabin assembly.

The throttle opening of Fukang 988 is 1 1.7, 14. 1, which is a little too big and too light to be the culprit.

According to my personal experience in using Fukang 988 1.6 8V car, I give the following suggestions.

1; Adjust the valve clearance, intake valve 15 line and exhaust valve 30 line,' 20,000 kilometers after overhaul, there is a problem of poor refueling', that is, the valve clearance is not adjusted correctly. Skills; Now it has entered the winter, and when the hot car is driving, it begins to remove the valve cover to adjust the valve clearance. After the automobile is cooled, the valve clearance decreases due to the principle of thermal expansion and cold contraction.

2; Check the spark plug again for wildfire and air leakage. Be sure to check it.

3; Cleaning the throttle, skills; Don't disassemble and wash, just wipe it with a clean rag, then open it (don't start the car when the key is opened for two spaces, and the car will stop on the flat ground), remove the positive pole of the battery pile head, and wait for a minute or two to connect it to the pile head to complete the initialization.