The car is a 2013 bright version of Tuan, bought in 2013, 150000 kilometers for 10 years.
When I went out to work one day last week, I occasionally turned on the yellow light of EPC. After turning on the light, I felt that sometimes the rotational speed would inexplicably rise or decrease, but it was not very obvious.
Stop and wait for someone that night, start again, unexpectedly can not start, the first hit the face, pull the insurance company back to 4S for free to wait for maintenance. I didn’t bring my laptop with me at that time, so I couldn’t check the trouble code with 5053.
After the inspection of the 4S store, the reply: an insurance is broken and can be changed. The insurance fee is 8 yuan, the man-hour fee is 200 yuan, and the total cost is 208 yuan.
By the way asked 4S, checked whether there is a fault code, 4S reply did not find the engine fault code.
After picking up the car, there was no EPC light on the same day. The next day, the EPC lights appeared again and again, not daring to turn off the engine, for fear of not hitting the car after the engine was turned off.
Damn, the 208 yuan of 4S store has been spent for nothing. Immediately go upstairs to get the laptop, test with 5053, sometimes find 2 fault codes, sometimes 3 fault codes, the main fault codes are as follows.
Address 01: engine (CFB) label: none
Part number software: 03C 906 022 BR hardware: 03C 906 022 BA
Component: MED17.5.20 G 9932
Version: D5H11Murray-Serial number:
Code: 0000077
Service point code: WSC 00078 00000
VCID: 6DD1DABE74D36276401-8038
2 failure codes have been found:
000568-turbocharger supercharging sensor (A) circuit
P0238-000-High level input-intermittent
Failure environment requirements:
Fault status: 00100000
Failure priority: 0
Failure frequency: 1
Automatic reset counter: 255
Time flag: 0
Date: 2047.15.31
Time: 31:63:63
Failure environment requirements:
Engine speed: 0 / min
Load: 0.0%
Speed: 0.0 km/h
Temperature: 21.0 ℃
Temperature: 22.0C
Absolute pressure: 950.0 mbar
Voltage: 12.065 V
000545-Throttle / Pedal position Sensor / switch B range / performance
P0221-000-intermittent
Failure environment requirements:
Fault status: 00100000
Failure priority: 0
Failure frequency: 1
Automatic reset counter: 255
Mileage: 150086 km
Time flag: 0
Date: 2050.14.29
Time: 18:07:37
Failure environment requirements:
Engine speed: 1648 / min
Load: 29.8%
Speed: 27.0 km/h
Temperature: 87.0C
Temperature: 32.0C
Absolute pressure: 950.0 mbar
Voltage: 14.097 V
Ready state: 0110 0001
Clear the fault code many times, scan again, appear again, the fault code can not be eliminated, the car affirmed the problem.
The main fault codes are: P0238, P0221, occasionally P0222
Do homework online: Baidu, Aika, Douyin, input the fault code, according to the fault phenomenon, preliminary judgment of the cause of the problem.
For many users on the Internet, when the EPC light is on, the engine fault light is on at the same time, but my car only turns on the EPC light.
After comprehensive analysis and judgment, it is likely that there is a virtual connection in the four lines of the throttle.
Remove the throttle valve, this is just removed, remove 6 steel clips, decompose the computer board.
The computer board does not look carefully, can not see that there is a false connection, this is a macro shot, the line is very thin, do not dare to touch with hard objects, find a small leaf, take out the stem, gently touch the third with the stem, unexpectedly has taken off, the fourth is only a little false connection.
Looking for copper wire, welding torch. Do it yourself. Too difficult, silver metal sheet is not easy to hang tin, soldering for a long time is not good, the heart is not at ease.
Go out to ask for help, find a professional master to repair the mobile phone, 20 minutes for welding, the master does not charge, only smoke, 2 cigarettes.
If you can’t wait, go back and pack it.
The copper wire is a little thick for fear of being thrown on the road again. At the same time, a fish bought a spare throttle and put it in the car at any time, and changed it as soon as it broke.
Throttle sign
Fasten 6 steel clips again. Simply clean the lower throttle.
After loading, clear the fault code, and then scan, there is no fault code.
After going out for 20 kilometers, there will be no problem after many tests.
The problem is solved perfectly.
The throttle feels lighter, and the turbine intervenes faster when increasing speed.
KayKennan 
6 
September 3, 2024 
