* Reduced engine performance: The ECU may retard timing excessively to avoid knock, resulting in less power and potentially poor fuel economy.
* Increased engine wear: While the ECU is trying to prevent knock, it might be doing so in a way that puts more stress on the engine components. Consistent suboptimal timing can lead to premature wear.
* Potential catastrophic engine damage: In extreme cases, the lack of knock detection can allow detonation to continue unchecked, leading to damaged pistons, connecting rods, or even a cracked block.
Therefore, replacing a faulty knock sensor is crucial for maintaining engine health and extending its lifespan. It addresses the root cause of the problem, preventing further damage and restoring optimal engine performance.
