Parts for your 2016 Nissan Pathfinder-Camshaft sensor

2016 Nissan Pathfinder camshaft-sensor: what it does and when to replace it

On the 2016 Nissan Pathfinder (R52, VQ35DE 3.5L V6), a camshaft position sensor is absolutely used. Nissan’s factory Electronic Service Manual for the R52 platform lists two camshaft position sensors (often labelled “PHASE” sensors) – one for each bank – feeding cam angle data to the ECM for variable valve timing, ignition timing, and fuel injection control. Common OBD-II diagnostics in the same manual reference related DTCs such as P0340/P0345 for camshaft position circuits, and the Nissan parts catalogue for this model year shows two cam sensors fitted. So yes, the camshaft-sensor is relevant and fitted on the 2016 Pathfinder.

In day-to-day terms, the camshaft-sensor lets the ECM know exactly where each intake cam is, so it can sync spark and fuel and command the continuously variable valve timing properly. When it’s healthy, the engine starts quickly, idles smoothly, and pulls cleanly. When it’s crook, owners may notice hard starting (especially when hot), a lumpy idle, sluggish performance, higher fuel use, or the MIL on with codes like P0340, P0341, P0345 or P0346. Because the R52 uses two sensors, issues can appear on one bank only, which helps with pinpointing faults.

It’s not a scheduled maintenance item, but it’s smart to check it as part of servicing if there are drivability niggles or fault codes. Quick checks: inspect the connector for broken locks or oil wicking, make sure the harness isn’t rubbing on the timing cover, and confirm the sensor sits square with an undamaged O-ring. If oil has crept into the plug, clean it and trace the source. Battery voltage and good grounds are a must before condemning the sensor.

Replacement is straightforward for a competent DIYer: disconnect the battery, unplug the sensor, remove the single retaining bolt, wiggle the sensor out, lightly oil the new O-ring, seat the new unit, and tighten the bolt to the spec in the Nissan ESM. Clear codes and road test. No complex relearn is typically required on this model, but scanning live cam/crank correlation after the job is a good shout. Genuine or high-quality aftermarket parts tend to be more reliable, and keeping the engine oil fresh helps the variable valve timing system that the cam sensors support, which in turn keeps the ECM happy.

• Typical symptoms: long crank, rough idle, reduced power, MIL on (P0340/P0345 family), occasional stalling.
• Good practice: verify power/ground/signal with a scope when available, don’t forget to inspect the crank sensor if cam codes persist.

FAQ 1: Where are the camshaft-sensors on a 2016 Pathfinder?

There are two. Both mount on the front timing cover: one faces Bank 1 (radiator side on the VQ35DE) and the other faces Bank 2 (firewall side). Each is held by a single small bolt with a plug-in connector. Access is usually from the top with basic hand tools.

FAQ 2: Do camshaft-sensors need periodic replacement?

No. They’re “replace on failure” items. If the engine runs well and there are no cam sensor codes, leave them be. Focus on good oil service and fixing wiring issues early—those are the usual culprits behind intermittent cam sensor faults.

FAQ 3: Can a bad camshaft-sensor damage the engine?

It’s unlikely to cause mechanical damage by itself, but it can trigger poor running, misfires, and limp behaviour. Prolonged misfiring isn’t ideal for the catalytic converters, so it’s best to diagnose and sort cam sensor issues promptly.