What is the fault of P0628? Analysis of hot topics and hot content on the entire network in the past 10 days
Recently, discussions about the "P0628 fault code" have become increasingly popular in the fields of automotive maintenance and electronic control. This article will combine the hot content of the entire network in the past 10 days to analyze in detail the meaning, possible causes and solutions of the P0628 fault, and attach relevant data for reference.
1. Basic information of P0628 fault code

| Project | content |
|---|---|
| DTC | P0628 |
| OBD-II definition | Fuel pump control circuit open circuit |
| Applicable models | Most vehicles equipped with electronic fuel injection systems |
| Failure level | Moderate severity, may cause engine stalling |
2. Common symptoms of P0628 failure
According to discussions in automotive forums and repair communities in the past 10 days, vehicles with P0628 fault codes usually exhibit the following symptoms:
| Symptoms | frequency of occurrence | Percentage of user reports |
|---|---|---|
| Difficulty starting the engine | high frequency | 67% |
| Suddenly stalled while driving | IF | 42% |
| Weak acceleration | low frequency | 23% |
| Fuel pump continues to run | low frequency | 15% |
3. Analysis of common causes of P0628 failure
Based on professional maintenance manuals and recent technical discussions, the main causes of P0628 failure include:
| Cause classification | specific questions | Proportion |
|---|---|---|
| circuit problem | Fuel pump relay failure | 38% |
| circuit problem | Wiring harness open or short circuit | 29% |
| control module | PCM/ECU failure | 18% |
| Others | Fuel pump itself is faulty | 15% |
4. Recent popular maintenance solutions
According to popular discussions and technology sharing in the automotive maintenance community in the past 10 days, solutions to P0628 faults mainly focus on the following aspects:
| solution | Operation steps | success rate |
|---|---|---|
| Check relay | 1. Locate the fuel pump relay 2. Test relay function 3. Replace if necessary | 72% |
| Line detection | 1. Check the fuel pump power supply line 2. Check the ground circuit 3. Repair open/short circuit | 65% |
| ECU reset | 1. Disconnect the negative terminal of the battery 2. Wait 10 minutes 3. Reconnect | 41% |
| fuel pump replacement | 1. Confirm fuel pump failure 2. Replace with new fuel pump 3. Clear fault codes | 88% |
5. Recent hot topics
In the past 10 days, hot discussions related to the P0628 fault also include:
| topic | heat index | Main discussion platform |
|---|---|---|
| P0628 failure occurs frequently in some models | ★★★★ | Autohome, Zhihu |
| Sharing experience in DIY repair of P0628 | ★★★☆ | Station B, Douyin |
| The high cost of processing P0628 in 4S stores | ★★★ | Weibo, Tieba |
| Cost-effective solutions for third-party repair shops | ★★☆ | Xiaohongshu, Kuaishou |
6. Professional maintenance suggestions
In response to issues that users are generally concerned about recently, professional technicians give the following suggestions:
1.Check simple components first:Statistics show that more than 70% of P0628 faults are caused by relay or circuit problems. It is recommended to start with these low-cost components for troubleshooting.
2.Pay attention to safe operation:The fuel system involves high pressure and flammable substances, and non-professionals are not recommended to disassemble the fuel pump by themselves.
3.Prompt processing:Although P0628 will not cause serious damage immediately, long-term neglect may cause more complex circuit problems.
4.Consider warranty period:The fuel pump control module of some models is within the warranty scope. You can consult the 4S store first.
7. Preventive measures
Based on recent technical discussions, effective methods to prevent P0628 failures include:
| Precautions | effectiveness | Difficulty of implementation |
|---|---|---|
| Check circuit connections regularly | high | in |
| Keep the fuel tank no lower than 1/4 | in | low |
| Use high quality fuel | in | low |
| Avoid prolonged idling | low | low |
It can be seen from the above analysis that although the P0628 fault is common, it is usually not difficult to solve. It is recommended that car owners not be overly nervous when encountering this fault code, but should also take appropriate inspection and repair measures in a timely manner to avoid possible safety hazards.
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