If there is happened misfires over the threshold value at #3 cylinder, the PCM sets DTC P0303.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
CKPS signal check in Engine roughness through condition | 1. Poor connection 2. Ignition system 3. Fuel system 4. Intake/exhaust air system 5. Ignition timing 6. Injector | |
Enable Conditions |
•
510rpm ＜ Engine speed ＜ 6500rpm
•
Engine load > Zero torque
•
Time after engine start > 0 sec.
•
Fuel level > 15% (7.5L)
•
Rough road detection : No | ||
Threshold Value | Case1 |
•
Misfire rate > 3.5% within1000 revs | |
Case2 |
•
Misfire rate > 5 ~ 33% within 200 revs | ||
Diagnostic Time | Case1 |
•
1000 revs | |
Case2 |
•
200 revs | ||
MIL ON Condition | Case1 |
•
2 trips | |
Case2 |
•
1 trip (Blink) | ||
