How do you pass the ITV emissions test depending on the car you have?

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It must be taken into account which gas emission tests your vehicle has to pass according to its idiosyncrasies

For petrol and diesel cars, the gas emission test consists of:
insert a probe into the exhaust pipe, with a warm engine. However, for diesel vehicles, the vapors emitted from idle speed to decoupling speed (the known gears) are sampled to analyze the particulates present in the emitted gases and determine whether they are within legal limits.

In particular, according to TÜV Rheinland, the amount of carbon monoxide (CO) specified by the vehicle manufacturer is measured in petrol vehicles with an idling engine. If this information is not available, this value should not exceed 0.5% for vehicles with an advanced emission control system (approx. 1992 onwards). For vehicles registered from July 2002 to the present, this value may not exceed 0.3%. These limits are different and more tolerable for vehicles without an advanced emission control system, ie vehicles registered before 1992.

During
the second part of the petrol vehicle test, with the engine running, the carbon monoxide data obtained cannot exceed 0.3%. For vehicles registered after July 2002, it should not exceed 0.2% CO.

On the other hand, 100% electric vehicles are exempt from passing this test as their power plant does not emit any kind of pollutant to the environment. Meanwhile, the current legislation for hybrid vehicles contains no significant variations with regard to their tests, which are conducted in a similar way to combustion engine vehicles. The main difference is that during the engine idling test, the manufacturer’s protocols are followed so that the electric motor is not activated, as in normal circulation, but the combustion engine, to make the measurement.

From TÜV Rheinland, to ensure good performance in this ITV test, drivers are advised to pay attention to various problems or apply certain tips.

Some of the issues to consider are the average fuel economy of the vehicle and the condition of the exhaust pipe. By paying attention to it, we can make sure that the engine is working properly and that there is no excess carbon before going in for inspection, which is especially useful for diesel vehicles.

In addition, there are also easy-to-implement preventive measures that help preserve the particulate filter and mechanics. For example, once the optimum temperature of the engine has been reached, it is useful to drive for three minutes with low gears on the highway at high rpm every now and then, use high-quality fuels that aid in cleaning and prevent carbon build-up or opt for additive cleaning for the feeding system.

By applying these tips and performing good preventive maintenance, you ensure that your vehicle passes this and the rest of the technical inspections without any problems and you can be sure that you drive safely

Source: La Verdad

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