General Information: DTC Detecting Condition
DTC DETECTING CONDITION CHART
| Item | Detecting Condition | Possible Cause | |
|---|---|---|---|
| DTC Strategy | Engine roughness through crankshaft speed fluctuation | Poor connection Ignition system Fuel system Intake/exhaust air system Ignition timing Injector ECM |
|
| Enable Conditions | Engine speed 510~6480rpm Engine load > Zero torq. Eng. load change < Max. Eng. speed change < Max. Calculated wheel acceleration < 20~38 Time after engine start > 0 Intake air temperature > -30°C (-22°F) |
||
| Case1 | Threshold Value | Misfire rate for FTP(Federal Test Procedure) emission thresh >5% | |
| Diagnostic Time | 1000 revs | ||
| MIL ON Condition | 2 driving cycle | ||
| Case2 | Threshold Value | 4% < Misfire rate for catalyst damage < 22% | |
| Diagnostic Time | 200 revs | ||
| MIL ON Condition | Immediately (Blink) | ||