Estudio comparativo entre los equipos de diagnóstico MET 6.1 y MGT 5 en las pruebas de gases que se realizan en centros de revisión técnica vehicular

Abstract

Nowadays, the gas emissions generated by gasoline engines represent a significant percentage of national and global pollution. For this reason, vehicle inspection centers under the INEN regulations control the emission levels by subjecting vehicles to gas testing using approved equipment. Until 2019, most vehicle technical inspection centers used the MGT 5 analyzer for gas diagnostics. However, currently, the National Transit Agency (ANT) has indicated that the MET 6.1 equipment, which is approved, must be used. Therefore, the objective of this research was to conduct a comparative analysis of the data obtained from standard gas tests using both approved and nonapproved equipment simultaneously. The methodological approach of this study was qualitative, conducted through experimentation to gather the data. It involved calculating the population sample for diagnosing gasoline vehicles for four months. Then, a statistical method was applied to compare the two samples. It was determined that the values emitted by the non-approved equipment are different from those obtained by the approved analyzer through this methodology, at idle state, three out of the four tested gases showed the most significant differences. Upon reviewing the thresholds. It was observed that the values obtained by the MGT 5 analyzer comply with the limits established by the INEN 2204 regulations. It can be concluded that the non-approved equipment provides different data but within the limits established by the regulations. Therefore, it is recommended to gradually discontinue its use in vehicle inspection centers since they are reliable but not officially approved.