1 | Fault code | |
2 | Fault storage Activation of malfunction indicator lamp for engine diagnosis (EURO3/4) or CHECK ENGINE (MIL) | after the end of the test period and faults after two successive driving cycles with faults |
3 | Frequency of the test | continuous |
4 | Checked signal or status | Limits for signal from hot film mass air flow sensor (air mass) |
5 | Fault setting conditions Lower limit Upper limit Order of magnitude Test duration |
at least 25 kg/h, if throttle valve angle is greater than 5° approx. 50 - 1200 kg/h, map dependent on engine speed and throttle valve angle at idle speed approx. 6 - 48 kg/h (1.3 - 1.8 V) approx. 5 s for each limit |
6 | Test prerequisites | - no fault in throttle valve adjustment |