How to check node status?

 

Each car owner can check the converter unlimited performance independently or by contacting a service center.

There are 3 methods for verifying converter unlimited health:

1. Visual inspection of the housing. Deformation of housing always indicates a partial or complete malfunction of a converter unlimited. In this case, it must be remove.
2. On some models, inspection without opening the case cannot be carrie out.
3. Back pressure. The check can be carrie out using a manometer and an adapter tube connecte to it.
4. The pressure gauge is put in place of lambda sensor and start the engine at 2.5-3 thousand turns for 15 seconds.
5. On average, normal pressure values ​​are 0.3 kg / cm2 and 0.35 kg / cm2 for modified engines. Indicators of 0.5 kg / cm2 and above indicate problems with the converter unlimited.
6. Diagnostics by a motor tester. This diagnostic option is possible with special equipment. The device is connecte instead of spark plugs and takes data during engine start.
7. Car diagnostics. If you have special equipment, you can carry out diagnostics yourself.

Why should you remove a converter unlimited?

The ideal solution for a catalyst failure is to replace it with a new one. However, not everyone can afford the purchase of a new, original part, the cost of which is about 500 USD.

An alternative version of Chinese production will cost 100 USD. But such expenses are unacceptable for some car owners, so they decide to remove the converter unlimited completely and weld an empty flame arrester.

It is important! Experts recommend changing the converter unlimited to the original only once, on new cars.

Subsequent investment in an expensive original catalytic converter is impractical, because the motor works worse and cells become clogged twice as fast.

Some universal models are several times cheaper than branded items and at the same time work with the same efficiency.

Why buy?

converter unlimited is one of the parts that continues to raise interest of consumers even at the end of a service life. There are more and more announcements about the purchase of automotive converter unlimited by numerous businessmen.

The reason for this is the content of precious metals. Quantity of precious metals depends on a model and mass of the converter unlimited. Average indicators are as follows:

Silver – from 5.5 to 15 g;

Palladium – from 0.05 to 4.95 g;

Platinum – from 0.1 to 1 g.

Extraction of precious metals from old catalyst is a technologically complicate and disadvantageous process at home.

This can only be done in large volumes using special equipment and reagents.

In order to decide if the converter unlimited has to be remove and change, pay attention to causes and symptoms of its failure.

1. Working life

converter unlimited is good for approximately 150 thousand kilometers. During operation time, the part gradually burns out, and the worse the fuel, the faster it happens.

The fact is that artificial additives in bad gasoline contribute to increased heating of fuel, and converter unlimited cells melt and clog.

It is important! The failure is also facilitated by microdamage that occurs when driving on bumps, malfunctions of piston group and ignition. Accelerating the honeycomb contamination process is an aggressive riding style.

2. Clogged honeycombs

A malfunction of a converter unlimited is detected by lambda sensor, and the error “CHECK ENGINE” pops up on a dashboard. At low efficiency of the converter unlimited due to clogging on the panel, error “P0420” may be displayed.

In addition, symptoms of component failure are:

• rattle and vibration under the bottom of a car. If a clang is heard during acceleration or relocation, it means that parts inside the converter unlimited body have crumble.
• decreased engine dynamics. The car slowly accelerates. As if it was being held in the back. This suggests that the cells are partially clogge.
• temporary lack of traction at high speeds.
• difficulties with starting the engine. With a complete breakdown of a catalyst, the car stalls immediately after starting.
• gray shade of exhaust with a pungent, suffocating odor is a sign, which indicates a significant destruction or melting of honeycombs.
• increased fuel consumption. This symptom is ambiguous and may indicate other problems. For example, gas mileage increases if fuel injectors are clogged.

All these signs indicate that the converter unlimited is still working, but cells are partially melted and their throughput is reduced. If you continue to operate the car in this situation, the engine may stop starting.

It is important! Ceramic particles of destroyed converter unlimited can get into cylinders, damage their walls and completely disable the engine.