MPG is improving

我是普锐斯 2010 的新主人。我喜欢机电一体化。我住在斐济，一个太平洋岛国。这辆二手车是半年前买的，距离17万公里。在过去的六个月里，我做了一些维修和保养：1.更换制动执行器和泵，2.更换和清洁制动液，3.维护混合动力电池，更换9节电池，清洁风扇，4.调整前轮前束角为0，前后轮前束角为4mm，加垫片调整到0、5，胎压前39 psi，36 psi。6、刹车油缸、刹车片、导轨保养管、排气、 7、更换前平衡杆胶套（有点异响）。车辆现在正在轻快地移动。mpg 已增加到约 65（日晷为 28km/l），这是 50-54（日晷为 21-23km/l）。我很满意。第二次20km左右，最高时速70km/h，一般40-50km/h。EV模式可行驶约2km（低速低油门）。用obd检测14组电池电压低，故障灯不触发。如果你更换一些低容量电池，你可以获得更多的 EV 里程和 mpg。请高手指点。

 

sorry,wrong language
I am the new owner of Prius 2010. I like mechanical and electronic technology.
I live in Fiji, a Pacific island country. This second-hand car was bought half a year ago and is 170,000 kilometers away.
In the past six months, I have done some repairs and maintenance: 1. Replace the brake actuator and pump, 2. Replace and clean the brake fluid, 3. Maintain the hybrid battery, replace 9 batteries, clean the fan, 4. Adjust the toe angle of the front wheel to 0, and adjust the toe angle of the rear wheel to 0, 5 before the rear wheel toe angle is 4mm, 39 psi and 36 psi before the tire pressure. 6. Brake cylinders, brake pads, guide rail maintenance, exhaust, 7. Replace the front balance rod rubber sleeve (a little abnormal noise).
The vehicle is now moving briskly. The mpg has been increased to about 65 (28km/l for the sundial), before 50-54 (21-23km/l for the sundial). I am very satisfied. The general travel distance is about 20km, and the maximum speed is 70km/h, generally 40-50km/h. The EV mode can travel about 2km (low speed and low throttle). Use obd to detect that the battery voltage of the 14th group is low, and the fault light does not trigger.
If you replace some low-capacity battery cells, can you get more EV mileage and mpg? Please expert guidance.

 

I haven’t cleaned the egr system. It doesn’t seem to be simple. I am going to find the solvent needed for cleaning locally, and then find a way to disassemble it. I really want to complete this work because it has a great impact on the fuel efficiency of the engine. , Even if I still don't feel anything.

 

Sorry, I didn't explain it clearly. In previous posts, this used car had braking problems. When I bought it, there were four fault lights in total, that is, ABS VSC brake exclamation mark. It was the problem of the brake actuator. The pressure leakage led to the busy work of the pump and eventually damaged, so the brake actuator and pump must be replaced, Buy used car parts locally for replacement. The reason for maintaining the brake pads, brake cylinder and guide pipe is to reduce the friction resistance to improve the mpg. What I don't understand is, is there any connection between the brake system and the cylinder head gasket?

 

For me, carbon deposit cleaning has always been a very difficult problem. Thank you for your advice. What I want to ask is, to what extent can be cleaned by soaking in hot water with powdered washing powder? Can the carbon deposit be completely cleaned by soaking without using a brush? That's good news, washing powder can be seen everywhere.

 

Thank you for your reply. I seem to understand what you mean. That is, the function of EGR system is to reduce the temperature of combustion chamber. If it has problems, it may lead to the increase of combustion temperature, and there is a certain probability that it will lead to cylinder gasket leakage. This is the relationship between them.
If the cylinder head gasket leaks and there is pressured cooling water around it, my goodness, it will almost have catastrophic consequences.

 

Is Berrymans carb only available in the United States? I am studying its substitutes. You have provided a good solution. Thanks again!

 

Thank you for your reply. I'll look for carbon cleaning substitutes. I have encountered new problems. Due to covid-19, I stay at home and want to change the transmission oil today. The repairman found that the bayonet of the oil drain screw is damaged and can't be removed. At present, what I can think of is to unscrew it with a pipe wrench tool first. It's best to avoid knocking it with a hammer. If it can be disassembled, the oil drain screw needs to be replaced. This is a new problem.

 

Thank you for your replies and suggestions, which gave me unprecedented ideas. The quality of Chinese products some is good some bad, but most of the products seem to be of poor quality. Haha, it may not just be a question of ability.

 

At present, the engine is running smoothly and the noise is very small. Use launch to test the egr. The step length is 15 and it is very unstable. It feels that the valve opening is small and the effect will be produced. It means that the egr is cooling and the valve is not blocked. I am not sure about this, see egr maintenance. It's hard to go up, I don't know that it is not necessary for me to come.