This code indicates a problem with the synchronization between the crankshaft and camshaft sensors. The engine computer (PCM) is detecting a mismatch in the signals from these two sensors, meaning it's not getting the timing information it needs to correctly fire the spark plugs and injectors.
Possible Causes:
* Faulty Crankshaft Position Sensor (CKP): This is a common culprit. The sensor itself might be failing or its wiring might be damaged.
* Faulty Camshaft Position Sensor (CMP): Similar to the CKP, a failing CMP sensor or its wiring can cause this code.
* Wiring Issues: Damaged, corroded, or loose wiring between the sensors and the PCM can disrupt the signal.
* Timing Chain or Belt Issues: A stretched, broken, or improperly installed timing chain or belt can throw the timing off, leading to this code.
* Engine Mechanical Issues: In rare cases, internal engine problems (like valve issues or a damaged timing gear) could indirectly contribute to this code.
Troubleshooting Steps:
1. Check for other codes: There might be additional codes that offer more clues.
2. Inspect the CKP and CMP sensors: Look for any physical damage or corrosion.
3. Check the wiring: Inspect for breaks, shorts, or loose connections to both sensors and the PCM.
4. Verify timing chain/belt: If possible, visually inspect the timing chain or belt for wear, breakage, or improper tension. This might require removing some engine components.
Important Note: This is not a DIY repair for everyone. Incorrect timing can cause severe engine damage. If you're not comfortable working on your vehicle's engine, it's best to take it to a qualified mechanic for diagnosis and repair. They have the tools and expertise to properly diagnose the issue and fix it safely.
