Nissan 208A2-1TV0A Three Way Catalytic Converter

The information given is with reference to the particulate filter supplied to diesel engines. The catalytic converter works in a way that sees it effectively alter even more dangerous gaseous emissions chemically, by converting them into less dangerous ones through oxidation, a process that involves oxygen. In the internal part of the converter, there is a honeycomb lattice produced from ceramic material coated with highly valued metals such as palladium, platinum, and rhodium; these enhances the chemical reactions which produces heat in the process. When navigating the slippery roads attention must be paid not to drive through deep standing water as when the hot converter is submerged into the cold water the materials of the ceramic internals of the converter can crack and thus a converter is blocked. Thus, one must not employ leaded petrol to the converter, keep the ignition and fuel channels in good condition, refrain from operating a car with a misfiring engine, and avoid push or tow starting the vehicle. Also, the ignition should not be turned off with the engine at high speeds, and certain fuel or engine oil additives that will hurt the converter should not be used. If the engine consumes oil in such a fashion that it forms blue smoke, the car must not be moved at all. There is also an important precautionary measure to be taken not to park the car in dry undergrowth or over long grass if it has made a long run due to high temperatures of the converter. Adding onto this, the converter is fragile and during servicing should not be struck with tools. Some sound out of the exhaust like sulphur may be present but this fades after a few thousand miles. If maintained properly a catalytic converter should last up to 100,000miles and where there is a lot of reduction in power it may be as a result of a blocked converter which will then need replacement. Finally, it is recommended that the subject must not be driven through deep water any more because such action will lead to the complete destruction of the honeycomb ceramic.

Renewal of the catalytic converter and oxygen sensors involves jacking up the vehicle, disconnecting wiring, unscrewing the sensor, and applying high-temperature grease before reinstallation. It is important to ensure proper routing of the wiring to avoid contact with hot components, as the sensors are sensitive and should not be dropped or cleaned.