Guo Qiulan also smiled bitterly and shook her head: She, the owner of the auto repair shop, had never seen this scene. Pen & Fun & Pavilion www.biquge.info

Meng Wentian smiled: "Hehe, there is no need to add money." Shu Shao, you are so generous and bold, if I add more money, doesn't it seem that I Meng Wentian is too greedy? Besides, the price of repairing the car is negotiated in advance, and there is no reason to increase the price after the repair is halfway or after the repair, so won't it become a threat?"

Shu Yi's favorite thing is that others say that he is bold, and said happily: "Dude is really exquisite." I've made up your friends. ”

Only Guo Qiulan knew that Meng Wentian was talking nonsense and fooling people: Are you still less of Shu Yi? Maybe you kid is making some small calculations.

When Meng Wentian turned off the engine and got out of the car, Ma Shenhong asked very carefully: "Xiao Meng, when you opened the hood, what did you say and send a report, did you mean that there was a charged body that touched the metal hoop on the air flow meter wire from time to time, just like the transmitter in an old-fashioned movie, constantly generating interference signals?"

Meng Wentian nodded and said, "Ma Gong, you can also see it?"

Ma Shenhong said ashamedly: "You can see it at a glance, but I've been watching it for almost an hour." If it weren't for the little black dot on the metal piece of the hoop I saw just now, I wouldn't have thought of it. …… Hey, it's all the fault of the car owner himself. ”

Meng Wentian nodded and said: "Actually, it's nothing to bundle and reinforce the wire, the main reason is that the high-power woofer that the owner installed on the hood later was too unserious when it was installed, and the wires used were also common ordinary wires on the market." For a short time, they were fine, but over time, the wires were baked at high temperatures in the engine case, and the plastic skin on the outside cracked, and the wires resting on the metal plates of the hoops inevitably touched the metal hood. Doesn't it become a high-power radio transmitter when it touches and jumps? And this kind of engine relies on electrical signals to control fuel injection, and once the signal of a certain sensor is disturbed by an external high-power signal, it will not be able to work. ”

Ma Shenhong said with a smile: "The real image of the radio transmitter, isn't it, constantly emitting chaotic electrical signals, coupled with the close distance between the two, naturally affects the analog electrical signal of the nearby air flow meter." ”

The reason is simple, just as the signal generated during welding work can make a lot of snowflakes on the surrounding TV. When the speed is low or the road conditions are good, the wire vibration is not large, even if there is a cluttered signal, it is not a big problem. But when the car entered Nanling County, there was basically no good road, and if the speed of the car was fast, the vibration would naturally be great, and the messy electrical signal would be enhanced, and there would be an accident.

"You're amazing. How can you see it at a glance at such a young age? I really admire your skills. Where did you learn?" Ma Shenhong said with admiration. Immediately, he smiled embarrassedly again, and said self-deprecatingly, "Hehe, before I came to Nanling County, I was also full of confidence, no matter whether it can be repaired in the end, with my decades of experience, I should be able to see the problem and find out the reason, who knows that when I do it, it will not be the case at all." ”

Meng Wentian said modestly: "Actually, I'm just lucky. I like luxury cars very much, and I happened to see this 'Arctic Fox' car on the Internet a few days ago, so I looked up some information about it and special fault repairs. ”

There is no way, the matter of Meng Wentian's rebirth must not be said, and he can't help but make money, so he has to use the Internet as a cover. Although the Internet is only now fashionable, many people still don't know about it, and many people think that the Internet is very mysterious and think that they can find a lot of knowledge on the Internet. As for whether the "Arctic Fox" really exists, he believes that these people in front of him will not check, and even if they can't find it, they will only think that they are not checking carefully, and they don't have enough time to check, or they are unlucky.

However, Ma Shenhong obviously won't believe his nonsense, this luxury car repair is not something that others can understand with a few words of casual guidance, let alone words on the Internet. It's just that he thought that Meng Wentian was unwilling to say his master, so he didn't ask, but continued to ask about the problem: "Little Master Meng, the problem is not just caused by this high-power speaker power cable, right?"

Meng Wentian said: "At the beginning, it was indeed caused by it, but as time went on, this disordered signal slowly affected some programs and chips in the control system, and the problem became more and more serious. ”

When Ma Shenhong heard this, he hurriedly said: "What should we do about this? We don't have special tools here, let alone operating software that can connect the chip and the control system, at most we can find an ordinary computer." ”

Meng Wentian said lightly: "It's okay. I have a way to do this without those special tools. However, my solution is only temporary, which is to sacrifice the life of some chips to improve the anti-interference ability of the engine signal, and let the car drive first, so that it can run. ”

Shu Yi next to him hurriedly said: "Then how can I do it? What if it breaks down on my way back to the capital?"

Meng Wentian said: "Even if it is temporary, it can be opened for at least half a year." You can't go back to the capital for half a year?"

When he heard that it was half a year instead of a few days, Shu Yi breathed a sigh of relief, but he still didn't believe the time Meng Wentian said in his heart.

Meng Wentian knew that he didn't believe it, and said: "In fact, as long as you tear off the speaker cable, or put it away from the engine control part, you can drive it back to the capital, and there is enough time for you to go to the 4S store to replace the chip that may be damaged." Of course, it is better to replace the entire motherboard. ”

Now Shu Yi was really relieved.

What stunned him was that Meng Wentian actually adjusted the parameters of the engine control system with the help of the steering wheel, gear lever and the display screen showing speed and fuel quantity in front of the car.

I saw Meng Wentian tinkering under the driver's platform for a while, the display screen in front of the driver's platform changed, and the display screen displayed different menus when he turned the steering wheel, and when the gear lever moved, the parameters inside began to become, which was really a bit of a god.

Senior technician Ma Shenhong also felt incredible, and asked in surprise: "Master Meng, what are you...... Where did you learn this, the steering wheel can be used as a handheld terminal, and the engine control and steering wheel and gear lever are not a system at all. ”

Meng Wentian smiled while changing the relevant parameters: "The more luxurious the car, the closer the connection between them, and most of the systems in the car are connected to the control system. When designing vehicles, the design department has set up secret doors in many places that are only allowed to be used by the factory's in-house service engineers, so that they can repair the vehicle when the conditions are not sufficient. ”

Meng Wentian didn't want to talk too much, so he turned his head and talked to Shu Yi, a technical idiot, about the fault of the car, which made Shu Yi stunned for a while, and fooled him so much that he didn't know the world.

Ma Shenhong understood what Meng Wentian meant, in fact, if he hadn't lost his face today, he wouldn't have asked Meng Wentian more about technical issues. It's not that he is proud of himself, nor is it that he is embarrassed that Meng Wentian is too young to ask, but all walks of life have their own rules, and every technician must or best have his own specialties, and he will not let others know easily. It is not for nothing that the disciples of the church starve their masters to death, who is willing to give their jobs to others?

Shu Yi's mind is much simpler.

He listened to Meng Wentian's words very carefully, and was very glad that today's failure was caused by his brother's blind installation of a high-power woofer, and the culprit was not himself but his brother, and his heart was very relaxed, and his face showed a long-lost smile, and said in his heart: Hehe, brother, brother, now you shouldn't blame me for damaging your car, right? This fault has eliminated the hidden danger of the car, but I have not only no fault but merit.

However, Shu Yi was even more angry and disdainful of Nanling Automobile Modification Factory in his heart: Nima, it's just a matter of a wire, not only did you not find the problem, but charged me 50,000 yuan for repair, and repaired my car out of order, which is really too much.

He secretly vowed in his heart to take revenge.

In fact, Wang Xigui and the others were somewhat wronged, they didn't do it on purpose, but their "preconceived" thinking hurt them, or they paid too much attention to their past experience. When I saw the engine cylinder stalling and the loss of power, I took it for granted that there was a problem with the engine itself, and immediately went to find out the cause of the engine, without thinking about it all or observing it carefully.