Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 19 (ON-BOARD DIAGNOSTIC (ENGINE CONTROL SYSTEM L3) (4 OF 5))DTC P050B [L3]NOTES
2008 Mazda 6 s Sport, 4D Hatchback, Standard
DTC P050B [L3]: Notes
2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Notes
WARNING: This page is about a different variant/trim than selected.
DTC P050B [L3] DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P050B | Cold start ignition timing performance |
|---|---|
| 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 an intermittent monitor (Cold start 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 is available. * DTC is stored in the PCM memory. |
| POSSIBLE CAUSE | * Damaged CKP sensor * Damaged CMP sensor * Damaged or chipped CKP sensor pulse wheel * Damaged or chipped CMP sensor pulse wheel * PCM malfunction |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.