The APDTY 118959 camshaft position sensor (CMP sensor) is a direct-replacement component designed for select 2000-2017 Nissan and Infiniti DOHC vehicles. This sensor monitors camshaft rotation and timing, sending critical data to the engine control module (ECM) to control ignition timing and fuel injection. When this sensor fails, drivers experience no-start conditions, rough idle, stalling, poor acceleration, and illuminated check engine lights with codes like P0340, P0345, or P0365.
Key Takeaways
- Replaces OE part numbers 23731-4M506, 237314M506, 237315M006, and others for Nissan and Infiniti DOHC engines
- Fits select 2000-2017 Nissan models including Titan, Armada, Sentra, Pathfinder, and NV commercial vans
- Compatible with 2003-2010 Infiniti FX45, M45, Q45, and 2004-2010 QX56 models
- Fixes common symptoms: no-start, stalling, rough idle, hesitation, and check engine light codes P0340/P0345/P0365
- Direct bolt-in replacement sensor—verify exact vehicle fitment using the live compatibility chart before ordering
Buy APDTY 118959 directly from APDTY
What Does the Camshaft Position Sensor Do?
The camshaft position sensor monitors the position and rotational speed of the camshaft(s) in your engine. It sends a signal to the engine control module (ECM) indicating where the camshaft is in its rotation cycle. The ECM uses this data—along with information from the crankshaft position sensor—to:
- Control precise ignition timing
- Determine fuel injection timing and duration
- Manage variable valve timing (VVT) systems
- Ensure proper synchronization between camshaft and crankshaft
On DOHC (dual overhead cam) engines like those in many Nissan and Infiniti vehicles, accurate cam position data is essential for optimal performance, fuel economy, and emissions control. When the CMP sensor fails or sends erratic signals, the ECM cannot properly manage engine operation, leading to drivability problems and fault codes.
What Are the Symptoms of a Failing Camshaft Position Sensor?
A failing or failed camshaft position sensor produces several recognizable symptoms:
- Check Engine Light: Diagnostic trouble codes P0340 (Camshaft Position Sensor Circuit Malfunction), P0345 (Camshaft Position Sensor Circuit Bank 2), or P0365 (Camshaft Position Sensor Circuit Bank 1 Sensor B) are common
- No-Start Condition: Engine cranks but won't fire, especially when sensor fails completely
- Stalling: Engine stalls at idle or while driving, may restart after cooling
- Rough Idle: Engine runs unevenly, misfires, or shakes at idle
- Poor Acceleration: Hesitation, surging, or loss of power during acceleration
- Reduced Fuel Economy: ECM runs in failsafe mode with incorrect fuel and timing maps
- Hard Starting: Extended cranking time, especially when engine is hot
These symptoms often worsen when the engine is hot, as sensor electronics and connectors are more prone to failure at elevated temperatures. If you're experiencing any of these issues, scanning for diagnostic codes and inspecting the camshaft position sensor should be among your first diagnostic steps.
Which Vehicles Does APDTY 118959 Fit?
The APDTY 118959 camshaft position sensor is designed specifically for DOHC Nissan and Infiniti engines. Based on verified fitment data, this sensor is compatible with the following vehicles:
Infiniti Models:
- 2003-2008 FX45
- 2008-2010 M45
- 2002-2006 Q45
- 2004-2010 QX56
Nissan Models (DOHC engines only):
- 2002 Almera
- 2005-2015 Armada 5.6L V8 GAS
- 2007-2015 Armada 5.6L V8 FLEX
- 2005 Micra
- 2012 NV2500 5.6L V8 GAS
- 2014-2017 NV2500 5.6L V8 GAS
- 2012-2017 NV3500 5.6L V8 GAS
- 2008-2012 Pathfinder 5.6L V8 GAS
- 2004 Pathfinder Armada
- 2000-2006 Sentra 1.8L L4 GAS
- 2000-2001 Sentra 2.0L L4 GAS
- 2004-2015 Titan 5.6L V8 GAS
- 2005-2015 Titan 5.6L V8 FLEX
Important: This fitment list is specific to DOHC engine configurations and the years/engines shown. Before ordering, always verify your exact vehicle year, make, model, and engine using the live compatibility chart on the product page. Engine configurations vary, and using the wrong sensor can result in improper operation or installation failure.
APDTY 118959 Specifications and OE Replacement Numbers
This sensor is manufactured to meet or exceed OE specifications for form, fit, and function. Review the specifications below:
| Specification | Details |
|---|---|
| APDTY Part Number | 118959 |
| Sensor Type | Camshaft Position Sensor (CMP) |
| Condition | Brand New |
| Engine Type Compatibility | DOHC (Dual Overhead Cam) only |
| Replaces OE Numbers | 23731-4M500, 23731-4M505, 23731-4M506, 23731-4M50B, 23731-5M000, 23731-5M001, 23731-5M005, 237314M506, 237315M006 |
| Direct Fit Replacement | Yes |
| Connector Included | Yes |
This sensor is a direct bolt-in replacement for the OE camshaft position sensor on the specified vehicles. The factory-style electrical connector ensures proper signal transmission and secure connection to the vehicle wiring harness.
How to Replace the Camshaft Position Sensor
Replacing the camshaft position sensor is a straightforward job that most DIYers and technicians can complete in under an hour. Always consult a factory service manual for your specific vehicle, but the general process includes:
- Disconnect the Battery: Remove the negative battery cable to prevent electrical shorts during sensor removal
- Locate the Sensor: The CMP sensor is typically mounted on the cylinder head, timing cover, or near the camshaft gear. Refer to your service manual for the exact location on your engine
- Disconnect the Electrical Connector: Press the release tab and unplug the connector from the sensor
- Remove the Mounting Bolt(s): Use the appropriate socket or wrench to remove the sensor retaining bolt (usually one 10mm bolt)
- Extract the Old Sensor: Carefully pull the sensor straight out of its mounting bore. If it's stuck, gently twist while pulling—do not pry or force
- Inspect the Mounting Area: Check for debris, oil contamination, or damaged O-rings. Clean the mounting surface if necessary
- Install the New APDTY Sensor: Insert the new sensor into the bore, ensuring the O-ring is properly seated. Do not force or cross-thread
- Tighten the Mounting Bolt: Torque the bolt to factory specification (typically 5-10 ft-lbs—verify in your service manual)
- Reconnect the Electrical Connector: Plug in the connector until it clicks securely
- Reconnect the Battery: Reattach the negative cable
- Clear Codes and Test: Use a scan tool to clear any stored fault codes, then start the engine and verify proper operation. Check for codes again after a test drive
Safety Note: Work on a cool engine whenever possible. Some sensor locations may be near hot exhaust components. Wear safety glasses and gloves. If oil leaks are present around the sensor bore, address the leak source (valve cover gasket, cam plug, etc.) during installation to prevent future sensor contamination.
Frequently asked questions
Will APDTY 118959 work on my Nissan Titan?
APDTY 118959 fits 2004-2015 Nissan Titan models equipped with the 5.6L V8 GAS or FLEX fuel engine and DOHC configuration. Verify your exact year and engine using the compatibility chart on the product page before ordering.
What fault codes does a bad camshaft position sensor cause?
Common codes include P0340 (Camshaft Position Sensor Circuit Malfunction), P0345 (Camshaft Position Sensor Circuit Bank 2), and P0365 (Camshaft Position Sensor Circuit Bank 1 Sensor B). You may also see related misfire or timing codes.
Can I drive with a failing camshaft position sensor?
Driving with a failing CMP sensor is not recommended. You may experience stalling, poor performance, and potential engine damage from incorrect timing. If the sensor fails completely, the engine may not start at all.
Do I need special tools to replace the camshaft position sensor?
No special tools are required. You'll need basic hand tools (sockets, ratchet, wrenches), and a scan tool to clear codes after installation. The job typically takes 30-60 minutes depending on sensor location and accessibility.
The APDTY 118959 camshaft position sensor is a reliable, direct-fit solution for restoring proper engine performance in your Nissan or Infiniti vehicle. If you're dealing with no-start conditions, rough idle, stalling, or check engine lights related to camshaft position sensor codes, this OE-quality replacement sensor can get you back on the road quickly. Always verify fitment using the compatibility chart for your specific year, make, model, and engine configuration. With straightforward installation and proven performance, the APDTY 118959 is the smart choice for DIY mechanics and professional technicians alike.