Clean Egr Valve

NXP Semiconductors Announce Release of Position Sensors Based on ABCD9 Technology

By Andy Choi

This new position sensor is ideal wherever accurate mechanical angle measurements need to be taken, such as the automatic headlight adjustments and the active suspension and electronic steering for automotive applications. Due to its robustness and advanced accuracy features this sensor would be especially beneficial for throttle control, under-the-hood power train and air control valve measurement applications. Moreover, the fact that this sensor remains active even in high temperatures such as 160°C makes it apt for applications pertaining to exhaust gas recirculation (EGR).

These sensors help to execute clean, comfortable and safe rides. It also supports regulations enforced for CO emission in cars by allowing precise control of the air intake and by implementing the electronic stability program or cruise control function. When compared to the previous sensor products, which used integrated ASICs, this sensor shows significant improvement mainly due to the signal conditioning ASIC in ABCD9 technology. Two capacitors are embedded inside the package for cost reduction. It is robust because the sensor is designed as per the new HMM (Human Metal Model) and have exceptional electrostatic discharge (ESD) behavior.

According to the Vice President, NXP Semiconductors, Drue Freeman, the company took great pains to achieve innovation in automotive technology platforms by making use of cutting edge products and valuable help and insights gained from customers.

Source: http://www.nxp.com

University of Cincinnati researchers have come up with a sensor that can rapidly detect dangerous Heavy Metal levels in human beings. The sensor that they have created provides fast feedback to the presence of heavy metals in general and manganese in particular.

A0597 Auto News Online − The most effective method to Clean EGR Valve

Controlling emission of polluting gases from a vehicle exhaust was a major challenge for designers of the automobile technology. 1 of the technological breakthroughs that emerged out of attempts made to control this emission is the EGR (Exhaust Gas Recirculation) mechanism fixed in auto engines. In this article, I mainly talk about how to clean EGR valve to make sure its peak performance.

Automotive troubleshooting is really a complex task that involves a multitude of small tune up jobs. Dirt, dust, heat and friction are the prime damaging agents of a car’s interior mechanism. Automobile maintenance is all about taking precautions that these destructive agents are kept at bay. That is why knowing small jobs like how to clean EGR valves is crucial. Prior to I share EGR valve cleaning instructions, let us understand the function of an EGR valve and why is it important that it really is cleaned periodically!

About EGR Valves The concept of ‘Exhaust Gas Recirculation’ evolved out of the must restrain the emission of nitrogen oxide compounds from a car’s exhaust. Nitrogen oxide compounds are poisonous gases that can cause adverse effects on many biological systems that they come in contact with besides causing smog. Smog reduces visibility. That is why it was crucial that the emission of these gases be reduced. It’s copiously produced in high temperature conditions, inside an engine, in a high concentration mixture of nitrogen and oxygen. Automobile engineers developed the EGR valve mechanism to nip the problem of nitrogen oxide production inside the bud.

This was achieved within the following manner using a feedback mechanism. A portion of the exhaust gases are fed back to the engine’s combustion chambers. This causes a drop inside the temperature of the gasoline-air mixture and reduces the production of nitrogen oxide compounds. The EGR valve’s function is to control when and how this feedback is supplied to the engine. The exhaust gases are not fed back when the engine is in high RPM mode or when it really is almost idling. This ensures that the auto engine’s efficiency is not compromised. Thus the EGR valve’s functioning is crucial for maintenance of engine efficiency.

EGR Valve Cleaning Instructions Now that we know the functioning of the EGR valve, let us see why it’s crucial that it can be cleaned periodically. The EGR valve can cause a fall in engine efficiency and seriously compromise fuel economy of a automobile, as a result of carbon deposition and blocking caused by particulate matter. Clogging can can cause the diaphragm inside the valve to fall into disrepair. That is why it can be critical that you know how to clean EGR valves and perform the cleaning job as soon as a year. Here are generic instructions on how to clean EGR valves. You will require a wrench set, socket set, scratch awl and phillips screwdriver for the job.Disconnect the vehicle battery’s negative terminal right after which you should do is to open the auto hood and locate the EGR valve. It generally lies on the engine side and has a vacuum hose on top and an electrical connector. Refer to your vehicle manual if you are not able to locate it.Remove the vacuum hose and electrical connector.Remove the pipe that connects to the EGR valve bottom.Then remove the entire EGR valve assembly by unscrewing the nuts holding it to the engine and the gasket, using wrenches. Now you can function on the EGR valve.Disconnect the solenoid that is typically attached to in the top of the valve, with a screwdriver.With the help of a scratch awl, clean the bottom passage of the valve mechanism. This will get rid of the carbon deposits inside. Also clean the pipe attached to it. In case the EGR valve gasket is damaged, replace it. Otherwise just clean it. That’s it. You have finished cleaning the EGR valve. Rest of the job is putting it back as it was. To do this, you must retrace your steps and go in reverse, by connecting the solenoid, pipe, vacuum hose, electrical connector and then reattach the EGR valve in its place inside the proper reverse order. With that your cleaning job is finished entirely. Reconnect the automobile battery.

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