How many exhaust cam sensors are present on a 4.2L V-6 engine?

In a 4.2L V-6 engine, the correct understanding is that there is typically one exhaust cam sensor located on each individual camshaft, which corresponds to having one sensor on the port camshaft and another sensor on the starboard camshaft. This design allows for optimal camshaft position monitoring, which is crucial for proper timing and engine performance.

Each cam sensor plays a vital role in the overall operation of the engine’s management system, facilitating adjustments to fuel injection and ignition timing based on the camshaft position. In this case, stating that there is one exhaust cam sensor only on the port camshaft does not capture the full design of the engine, as both camshafts are equipped with their own sensors to monitor exhaust timing and ensure balanced operation of the engine.

By understanding the functionality and purpose of each cam sensor within a V-6 engine, it's clear that a comprehensive approach recognizes both camshafts as integral to engine performance, making the total count of exhaust cam sensors equal to two—one on each camshaft.