I tinkered with cars and built a super military industry

hum!

As soon as Wu Cheng finished speaking, it was like a huge rock stirring up a thousand waves, and the entire competition table exploded.

"I just said that it would be impossible to fully upgrade and modify three cars in nine days. I didn't expect to be slapped in the face so quickly."

"Then Li Yifan from Sanchuanba is too crazy."

"If the sky is crazy, it will rain; if people are crazy, there will be disaster!"

"Then what if he really modified all three cars?"

"Li Yifan really modified all three cars. I'll eat your wrench too."

"Don't talk too much. All the cars we modify are new cars. Many new cars are already adjusted at the factory. Many things don't need to be touched during the modification process."

"No matter how much it moves or how little, fortunately, you don't have to pay for the modified parts for official competitions, otherwise it will be a real loss."

Li Yifan sat in the competition seat and began to close his eyes and meditate until Wu Cheng finished calling the name of the last person.

"Okay, everyone! Now, under the supervision of the staff, go to our parking area and find your own modified vehicle."

After Li Yifan heard the sound, he got up and followed the staff to the car selection area.

And moved the three cars he selected to his assessment station.

Because there were three vehicles, Li Yifan directly asked for three lifts and lifted three vehicles of different models.

The models of the three cars in front of me are Geya, Pailing and Gexing.

Facing Ge Ya in front of him, Li Yifan opened the system scan.

[System scanning...]

【Scan result:】

[The engine air flow is occasionally lost, it is recommended to search for the line. 】

[The engine ground wire is defective, it is recommended to tighten it. 】

[The engine's turbocharging occasionally fails and it is recommended to refit it. 】

[The vehicle height does not match, slight adjustment is recommended. 】

[The critical point of the brake master cylinder push rod is on the high side, so slight adjustment is recommended. 】

[CVT continuously variable transmission has certain defects, and it is recommended to replace it with a dual-clutch. 】

..........

After Li Yifan learned about Ge Ya, he scanned Pai Ling again.

System scanning...

Scan result:

The engine air flow is occasionally lost. It is recommended to find the circuit.

The engine ground wire is defective, it is recommended to tighten it.

The engine turbo occasionally fails and it is recommended to re-modify it.

The vehicle height does not match, slight adjustment is recommended.

Inclination angle deviation, debugging is recommended.

The toe-in angle is different, it is recommended to adjust it.

The critical point of the brake master cylinder push rod is on the high side, so slight adjustment is recommended.

The CVT continuously variable transmission has certain flaws, and it is recommended to replace it with a dual-clutch.

..........

After learning about the second car, Li Yifan scanned the grid again.

[System scanning...]

【Scan result:】

[The engine air flow is occasionally lost, it is recommended to search for the line. 】

[The engine ground wire is defective, it is recommended to tighten it. 】

[The engine's turbocharging occasionally fails and it is recommended to refit it. 】

[The vehicle height does not match, slight adjustment is recommended. 】

[Inclination angle deviation, debugging is recommended. 】

[The toe-in angle is different, so adjustment is recommended. 】

[The critical point of the brake master cylinder push rod is on the high side, so slight adjustment is recommended. 】

[CVT continuously variable transmission has certain defects, and it is recommended to replace it with a dual-clutch. 】

......

After Li Yifan scanned the data of the three cars, he probably had a conclusion in his mind.

The engines of the three cars all use turbocharging, but there are still occasional boosting failures.

The system prompts that i-VTEC variable valve lift technology can be used.

As for the CVT continuously variable transmission, the system prompts to replace the dual clutch.

However, in order to save cost and time, Li Yifan decided to debug the power transmission between the power and transmission on the original car.

As for the air flow, Li Yifan could only make a judgment after checking the lines.

After learning about the three cars, Li Yifan came to the Geya car.

Use a system scan to start troubleshooting the air flow meter wiring.

In front of the system scanning, any fault points on the vehicle will be clearly displayed through the light curtain.

There is a red light on at the wiring harness connection between the air flow meter and the computer board.

Li Yifan followed the line and found the fault point.

But the fault point of the wiring harness is extremely hidden, just in the middle of the cabin through the firewall.

Without the system scanning function, it would be difficult to find the fault point through line measurement tools, and the vehicle would still have sporadic failures.

Li Yifan peeled off the wiring harness and found that the copper wire of the signal core leading to the computer board had been cut off.

Several copper wires are connected between the lines, which will cause a virtual connection, but the ECU will not report the code.

The strange thing is that the outer wire skin is intact.

This kind of virtual connection failure will cause the problem to be completely unable to be found during troubleshooting.

This wiring harness has obviously been tampered with.

Could this be done intentionally by the organizers? Li Yifan frowned slightly.

In order to verify his guess, Li Yifan turned around and came to the other two cars.

Through system scanning, Li Yifan found that the fault problem of Pailing's air flow meter was exactly the same as that of Geya.

There is also a virtual connection in the line between the air flow meter and the computer.

Li Yifan scanned the system again and found that the fault points of the air flow meters were exactly the same.

The organizer really knows how to play!

Li Yifan returned to Geya. In order to save time, he flew the line alone to bypass the fault point of the air flow meter.

Then the brake push rod was debugged.

After handling these simple problems, Li Yifan began to disassemble the engine.

The engine is relatively complex, and this is the first time Li Yifan has dismantled it.

Fortunately, the organizer had all the tools ready, otherwise Li Yifan would have spent a lot of time looking for tools.

Li Yifan first removed all the connecting harnesses of the engine, and then removed all the connecting screws.

Finally, with the help of the engine hanger, the entire engine was dismantled.

After dismantling it, Li Yifan began to disassemble the engine.

Remove the turbine and switch to naturally aspirated.

Then remove the engine casing, belts and other accessories.

After working for a long time, Li Yifan finally disassembled the engine and took it apart.

Looking at the pile of engine parts neatly arranged on the workbench.

Li Yifan wiped his sweat with a relieved smile on his face.

This is his first time to dismantle an engine. When he watched his master Liu Yong dismantle it before, he felt it was very complicated.

I didn’t expect that it would be complicated to dismantle it by myself. Fortunately, there was a system to guide me step by step. Otherwise, I wouldn’t be able to dismantle it, let alone install it.

Next, it is necessary to modify the variable valve depth and abandon the turbine design entirely.

The supervisory staff next to Li Yifan was very puzzled when he saw Li Yifan coming up and dismantling the engine.

Other contestants must at least test drive, inspect, and troubleshoot before coming up.

In this way, we can prescribe the right medicine before starting to modify the car, but the young man in front of me is doing it right.

Just when the staff was confused, Li Yifan stepped forward.