| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent an increase in harmful exhaust gas by a leak and an erroneous diagnosis by detecting the leak of an exhaust system, and stop or correct air-fuel ratio feedback control and a diagnosis of a catalyst when detecting the leak of the exhaust system by a leak detecting means. SOLUTION: Since the various control and the diagnosis is stopped and corrected according to the result by detecting a place and a quantity of the leak, overheat of the catalyst, the increase in the harmful exhaust gas and the erroneous diagnosis of the catalyst is properly prevented.</p> |
