The Engine Control Module (ECM) constantly adjusts the ignition timing based on various sensors including:
* Engine speed (RPM): Timing advances at higher RPMs.
* Engine load: Timing adjusts based on throttle position and other load sensors.
* Engine temperature: Timing might be altered during warm-up.
* Oxygen sensor feedback: Helps maintain optimal air/fuel mixture, influencing timing indirectly.
Trying to adjust the timing yourself will likely damage the engine or cause drivability issues. If you're having ignition-related problems, you need to:
1. Diagnose the problem: Use an OBD-II scanner to check for trouble codes. A qualified mechanic can help if you don't have the tools or knowledge.
2. Address underlying issues: Problems like a faulty crankshaft position sensor, camshaft position sensor, or mass airflow sensor can affect timing indirectly.
3. See a mechanic: Let a professional diagnose and repair any ignition-related issues. They have the tools and expertise to properly diagnose and fix the problem without causing further damage.
In short, there's no number to look up for timing. The ECM handles it, and any attempts to adjust it manually will be unsuccessful and potentially harmful.
