What is your terms of packaging?

We offer brand packing box and neutral packing. We can also offer packing box for brake pads according to your designs.

What is your terms of payment?

Generally, by T/T 30% as deposit, and 70% before shipment.

What is your terms of delivery time?

Generally, it will take 30 to 60 days after receiving your advance payment, it depends on the items and the quantity of your order.

Can you manufacture according to the samples?

Sure, we can develop by the samples or detailed drawings by free.

What is your sample policy?

We can supply the samples free, but the customers have to pay the courier freight cost, the cost will be deducted in your first order.

What’s your the minimal order quantity?

The brake pads MOQ is 100 sets for each item.

Idling jitter of the newly replaced spark plug

The operation of the car is driven by the engine, and the smooth operation of the engine depends on the spark plugs. Spark plugs are vulnerable parts. If they are used for a long time, they will inevitably become old and fail. If the old spark plug is damaged, the new spark plug will be replaced Shaking occurs, but it only occurs when the vehicle is idling at a hot state. Will it occur when the vehicle is running? What's the matter? What is the idling jitter of the newly replaced spark plug? Let's take a look at it together.

The so-called idling jitter means that when the average idling speed drops 20 rpm, the speed jitter becomes larger, and the main driving position can feel as if the jitter is a little bit larger, which can be said to be unstable idling jitter.

For newly replaced spark plugs, if the engine is shaking, the first thing to judge is whether it is a problem with the spark plug itself. If there is a problem with the spark plug, the engine will keep shaking, especially when the car is accelerating. If there is no shaking during driving, it is generally not a problem with the spark plug. It may be caused by the following reasons:

1. The cylinder wire was disconnected or damaged when the spark plug was removed, causing abnormal ignition;

2. The spark plug assembly is wrong, it is not screwed properly or the cylinder wire is not inserted;

3. The ignition coil is aging, causing performance degradation;

FoxModel, partNissanCar model,ToyotaPradoModel, partpublicCar model,CherySome models, some models of Changan, most models of direct injection in the cylinder, especially non-new cars that have traveled more than 5,000 kilometers in the country, when the engine is in a hot state, the engine enters closed-loop control, and the symptoms of idling interval jitter occur, which belong to the replacement of the spark plug. Normal reaction, it may beThe throttle valve or idle speed motor is too dirty, causing the air intake to be inaccurate or stuck; it may also be that the vehicle is performing idle speed self-learning adjustment and matching.

If the fuel injection nozzle is dirty or stuck, it will cause poor fuel injection; the EGR valve will be stuck and not closed tightly, causing exhaust gas to enter the cylinder and the mixed gas concentration is too low. These will cause the engine to shake. In addition, refitting the engine, whether it is to improve or reduce performance, will cause the engine to jitter at idle due to the above reasons.