P0344: Camshaft Position Sensor 'A' Circuit Intermittent (Bank 1 or Single Sensor)
3 vehicles · 2 makes · $250-$4,500 repair
Most Reported On
P0344 is an OBD-II diagnostic trouble code meaning “Camshaft Position Sensor 'A' Circuit Intermittent (Bank 1 or Single Sensor).” P0344 is a generic OBD-II code indicating the engine computer detected an intermittent or erratic signal from the camshaft position sensor 'A' on bank 1 (or the single sensor on inline engines). This sensor reports the camshaft's position so the computer can correctly time fuel injection and ignition. An intermittent signal means the data is dropping out momentarily, which can cause hard starting, stalling, hesitation, or rough running. It often points to a wiring or connection problem rather than an outright sensor failure. This code is most commonly reported on 2005-2006 Jeep Wrangler, 2000-2011 Ford Ranger, and 2000-2010 Ford Explorer, with repair costs ranging from $250 to $4,500.
Common Causes
Typical Repair Cost
Based on 3 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P0344, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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Vehicles Affected (3)
FAQ
What does P0344 mean?
P0344 stands for "Camshaft Position Sensor 'A' Circuit Intermittent (Bank 1 or Single Sensor)." P0344 is a generic OBD-II code indicating the engine computer detected an intermittent or erratic signal from the camshaft position sensor 'A' on bank 1 (or the single sensor on inline engines). This sensor reports the camshaft's position so the computer can correctly time fuel injection and ignition. An intermittent signal means the data is dropping out momentarily, which can cause hard starting, stalling, hesitation, or rough running. It often points to a wiring or connection problem rather than an outright sensor failure.
What are the most common causes of P0344?
The most common causes of P0344 are: Loose, corroded, or chafed camshaft sensor wiring/connector, Failing camshaft position sensor, Intermittent open or short in the circuit, Damaged or contaminated reluctor/tone ring, Excessive air gap or debris at the sensor tip, Poor ground or unstable power supply, Worn timing components affecting sensor signal. The specific cause varies by vehicle.
How much does it cost to fix P0344?
Repair costs for P0344 range from $250 to $4,500, depending on the vehicle and root cause.
Which vehicles are affected by P0344?
Au7o has documented P0344 across 3 vehicle models from 2 manufacturers: Ford, Jeep.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.