The writing is not good and the writing is very messy. Please forgive me.
A yellow engine alarm appeared at the end of January. Just in time for the Spring Festival, followed by the epidemic, and it was not repaired until March 8, when the Auto Parts City opened.
After lighting up, the fuel consumption obviously increases, and the throttle response is slow and weak. The average minimum fuel consumption at high speeds is still 7.8. After checking the 5053 error, Baidu found that some people said pre-oxygen and some people said post-oxygen sensors. During the repair shop, Taobao did not start all kinds of work and wanted to try to replace it himself. I felt that the front oxygen sensor was easier to replace, so I thought I would try replacing it myself in case it was better. After reading the post on the forum tintian(Tour Cattle) and asking for specific matters, thank god xintian. When Taobao resumed in February, I immediately purchased NTK’s pre-oxygen sensor. The goods arrived quickly, but the sleeve did not arrive after waiting for a week. After the sleeve arrived, I tried to replace it, but the joint position of the front oxygen sensor could only be reached with one hand and could not be removed. I also compared the post of the great god xintian and found that it was different from my previous oxygen sensor excuse. So Taobao returned the goods. Give up repairing yourself. Taobao found a Beijing parts dealer and helped find a repair shop, so he made an appointment to replace it the next day. I successfully arrived at Xiguomao Auto Parts City and took the parts to the repair shop with the parts manufacturer. The maintenance master checked the fault code and said it was a failure of the rear oxygen sensor. He suggested that I replace it together. ok change. After lifting the car up, the maintenance technician found that the rubber sleeve of the swing arm was cracked. He suggested replacing it. Ok, he used a hammer to remove the old one, and then he used a hammer to install a new one. Everyone, pay attention to this part. I installed it upside down at the beginning, and then hammered it down and reinstalled it took a lot of time. After the replacement, I need to do 4 rounds of positioning, but mine was fine tuned.
List: Swing arm rubber sleeve 70*2 ; working hours 200 ; pre-doctoral oxygen sensor 275 ;NKG oxygen sensor 180 ; Working hours are 130 ; positioning for 4 rounds is 50.
Total cost: 975.
After replacing it, the average fuel consumption is about 6.8. Throttle feedback has been significantly improved.

That’s pretty much it.