B50 is still cold after maintenance is not good for ignition Maintenance items Replace the spark plu

Have you checked the battery and motor? Is the oil circuit cleaned?

It should be that the throttle valve is too dirty and the solenoid valve is not closed tightly, and the fuel injector is too dirty will also cause unstable idling. Bunker quality notices are also responsible for this failure. It is advisable to go to the workshop for inspection. Thank you.

There is jitter, which may be due to the formation of gasoline gelatinization caused by bad gasoline, resulting in obvious shake fault phenomenon of the engine.

Clean the throttle and check the cylinder line.

You can change it again after about 40,000km, unless you feel that the car is weak or the fuel consumption has increased.

Ordinary copper core spark plugs generally need to be replaced every 30,000 kilometers, and *** spark plugs (platinum, iridium, etc.) are generally replaced every 6-90,000 kilometers. If it is not replaced regularly, it will lead to the difficulty of cold start, obvious frustration and idle shaking when driving, frequent idle self-stalling, engine acceleration performance decreases, power is insufficient, and fuel consumption increases.

The throttle needs to be cleaned regularly, generally every 20,000 kilometers to clean 1 time, if the throttle is not cleaned regularly, it will lead to an increase in the resistance of the throttle switch, resulting in unstable engine idling.

Platinum spark plugs can be used for 10w km. The general one is 2w kilometers to replace depending on the situation. 4w km must be replaced.

I'm a mechanic at a Nissan 4S shop. Platinum can definitely be used up to 10w kilometers. The white gold ones cost about 100 yuan each. If you change it once if you 4w, it's not a big loss.

The oil can't keep up, like people with asthma don't have enough air. The oil circuit is cleared, the fuel injector throttle valve is cleaned, and the spark plug is changed once every 30,000 yuan.

1: Measure the cylinder pressure. 2: Check the concentration of the mixture. 3: Whether the camshaft fixing screw is loose.

Hello, 50,000 words can actually do a big maintenance.

Of course it is necessary.

Spark plug for better ignition efficiency. Durable!

Three cleaning, I think, you don't know that coke is more serious, so dirty, it doesn't matter if you wash it once.

They give you a good job, as well as failing to fulfill all not very well. It's a little higher.

It is a fact that you can find a friend in the repair shop to know to do.

The same effect, giving you half the cost,**.

But, again, I don't know this car, after all, it's the most.

Not all car repair shops are open to friends, so people don't know about the car, a 4s shop may be a good choice.

Expensive repairs, I don't think people understand cars, 4S shop bit by bit is more safe. Spend a little more money and buy a peace of mind, which is too low.

Timing belts, motor belts, oil filters, and oil circuit cleaning are OK. This is already in place!

Of course it is necessary.

The spark plug is replaced a little better, and the ignition efficiency is also better. And durable!

Three cleanings, I think, if you don't know it, the carbon deposits will be more serious, and they are all so dirty, it doesn't matter if you wash them once.

They do a good job for you, and all the faults are discharged, which is not very good. It's just a little more expensive.

There is one thing that I actually think personally, you can completely find a repair shop that a friend knows to do the same problem.

The same effect, ** gives you half the price.

But then again, it's the majority who don't understand cars.

Not everyone's friends open auto repair shops, so for people who don't know how to drive, 4S shops are not necessarily a bad choice.

Although it is expensive, but to repair this thing, I don't feel that people who don't understand cars, it is still safer to repair in 4S shops. Spend a little more money and buy a peace of mind, although this money is too cost-effective.

Haha there is no need, the 4S shop is a working hour system, there is a commission, for example, the taxi runs three or four hundred thousand to replace the oil three filters and spark plugs.

Eh, don't ask if the fault is solved. Answer: You don't need to feel that you have done it in vain, wronged. But if you think that the fault has been solved, it is much better than you running back and forth to the 4S store because of this failure.

First of all, the lack of cylinder has little to do with the speed sensor, and there are generally three reasons for the lack of cylinder, 1. No fire (or weak, wrong timing) 2. No oil (or too thick, too much) 3. Mechanical failure (cylinder pressure is too low).

According to what you said, 1. The ignition hardware should be fine, and the control line between the computer and the high-voltage package should be checked for abnormality. 2. Check whether the injector and control of this cylinder are normal. 3. Check whether the cylinder pressure is normal.

After such an investigation, it should be possible to determine what went wrong.

Is the fuel injector blocked, and the oil cannot be sprayed, or the cylinder will be missing.

Is your car good, mine is the same as you, and it was replaced today. But the computer check is still a single cylinder misfire.

There was a malfunction with the addition adjustment of the mixture.