DTC P050B:00: Notes

DTC P050B:00	Cold start ignition timing performance problem
DETECTION CONDITION	The PCM monitors actual ignition timing using the CKP sensor while electronic spark advance control fast idle correction operating. If the ignition timing is out of specified range, the PCM determines that the ignition timing at cold condition has performance problem. Diagnostic support note This is a continuous monitor (cold start emission reduction strategy monitoring). The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM. PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle. FREEZE FRAME DATA (Mode2)/Snapshot data is not available. The DTC is stored in the PCM memory.
POSSIBLE CAUSE	Damaged or chipped CKP sensor pulse wheel CKP sensor malfunction Damaged or chipped CMP sensor pulse wheel CMP sensor malfunction PCM malfunction