DTC Information: DTC Detecting Condition
DTC DETECTING CONDITIONS AND POSSIBLE CAUSES
| Item |
Detecting Condition |
Possible Cause |
| DTC Strategy |
- Determine if a multiple cylinder misfire or a cylinder specific misfire is occurring by monitoring crankshaft rotation speed.
|
- Faulty Spark plugs
- Faulty Spark plug cables
- Air Leakage
- Belt deflection and Air gap of CKPS
- Incorrect timing
- Faulty injector
- Improper fuel pressure
- Improper engine compression
|
| Enable Conditions |
No disabling faults present/no disabling Active Faults
- P0340/P0341/P0118/P0117/P0115/P0336/P0335/P1295
- Engine speed between 550 and 5800 RPM
- System voltage between 9V and 18V
- The ECT indicates an engine temperature between -6°C (20°F) and 120°C (248°F)
|
| Threshold value |
Case 1 |
- Individual cylinder misfire detection
|
| Case 2 |
- Emissions damaging - 18 times in 600 ignitions (In case that the misfire affects more than 1.5 times than the Federal Test Procedure (FTP) tailpipe standard)
|
| Case 3 |
- Catalyst damaging - 95 times in 600 ignitions at idle (It is going to be changeable according to the load or the temperature which is not in the range where it does not melt catalyst)
|
| Diagnosis Time |
|
| MIL On Condition |
|