The test was done on cars travelling at the speeds of 20km/h, 60km/h and 100km/h using the performance testing mode for chassis dynamometer. In this test, the secondary ignition waveform, exhaust emissions and fuel consumption were measured in case of faulty MAP sensor, faulty oxygen sensor and spark plugs. The following results from the related analysis of secondary waveform, emission and fuel consumption measurements were obtained : 1) The fuel consumption was higher in the order of oxygen sensor trouble, MAP trouble, spark plug trouble, before maintenance and after maintenance. Maximum fuel economy is 9.3km/L, the minimum fuel economy is 3.2km/L, the difference between max. and min. is 65.5%. 2) If you compare the oxygen sensor trouble with after maintenance, the CO has improved an average of 98%, fuel economy average of 60%. And the HC has improved an average of 87%, fuel economy average of 60%. The fuel consumption and exhaust gas was bad in the order of oxygen sensor trouble, MAP trouble and S/P trouble.

The two experiments of gasoline vehicle using eco-friendly treatment(Ecoburn) were completed. The experiments was done on traveling using the performance testing mode for chassis dynamometer and road driving test. The experiments were employed to measure exhaust emissions and fuel consumption. In this experiment, the correlation between CO₂and fuel consumption were found in gasoline vehicle. The following results are obtained by analyzing the data relativity between exhaust emissions and additives. 1) If the value of exhaust emissions such as CO, HC, NOX, CO₂were improved as gasoline mixed additives at th ratio of 300:1. The value of fuel consumption were worse compare to those of exhaust emission. The improvement of resulting data value was best CO, HC, NOX and fuel consumption in the order named. 2) The value of CO₂ were to be nearly proportional to the fuel consumption value.

고속도로와 일반국도는 도로의 구조, 조건이나 속도 등이 다르게 나타난다. 이러한 특성에 따라서 CO2 배출량 역시 다르게 나타난다. 하지만 고속도로와 일반국도에서 배출되는 CO2의 비교 연구는 미비한 실정이다. 이러한 이유로 고속도로와 일반국도에서의 CO2 배출량을 비교하여 분석이 필요하다. 본 연구를 위하여 경부고속도로와 1번국도를 대상으로 분석을 수행하였다. 첫째, 전체 구간의 차량 당 CO2 배출량을 비교하였다. 둘째, 세부 구간 중 상위 랭크된 10개의 구간을 상세 분석하였다. 셋째, 차량 당 CO2 배출량이 가장 많은 구간과 가장 적은 구간을 선정하여 세부적으로 비교 분석하였다. 분석 결과 고속도로의 경우 교차로나 신호 등의 제약조건이 없어 거의 등속도로 운행을 하기 때문에 CO2 배출량이 적고, 일반국도의 경우 교차로 및 신호로 인하여 가감속 운행을 하기 때문에 CO2 배출량이 큰 것으로 분석되었다. 국가적으로 교차로 수 조정 및 신호 연동화를 개선한다면 일반국도에서 CO2 배출량을 저감할 수 있다는 추론이 가능하다.