P0344 on Volkswagen: Causes, Symptoms and Fix Cost
Quick Answer
Not safe to drive
P0344 on a Volkswagen means the engine computer is getting an intermittent signal from the camshaft position sensor on bank 1, or the only sensor on the engine. The computer uses the camshaft signal to know which cylinder is on which stroke, and to control variable valve timing. When the signal comes and goes, the engine can hesitate, stall or start hard, then run normally again. VW, Audi, Skoda and SEAT apps often show this code as P034400; the last two digits are a failure-type byte.
- Severity
- Moderate · Ignition
- Typical repair cost, all makes
- €30-€1400
Connect a standard OBD2 adapter (Bluetooth LE on iPhone) to your Volkswagen and Skanyx tells you what P0344 means on that engine, whether it is safe to keep driving, and what the fix should cost. Free on iPhone and Android.
Get Skanyx freeWhat does P0344 mean on a Volkswagen?
The Quick Answer above is the generic definition. What follows is the model-specific detail for the Volkswagen models that log P0344.
Volkswagen Golf
2008-2024
Volkswagen Group software reports P0344 as "Camshaft Position Sensor (G40): Intermittent", so G40 is the part name to look for in a VW fault list or parts catalogue. Ross-Tech lists faulty G40 wiring, a faulty G40 sensor and misaligned timing as the causes, and its first check is the wiring.
What causes P0344 on a Volkswagen?
Beyond the generic causes listed on the main P0344 page, these are the patterns noted for Volkswagen models:
Faulty wiring to or from the G40 camshaft sensor
: Volkswagen Golf
Faulty G40 sensor
: Volkswagen Golf
Misaligned timing
: Volkswagen Golf
How to diagnose P0344 on a Volkswagen with OBD2
Follow these steps to pinpoint the root cause of P0344:
- Read all codes and freeze-frame data, and check for P0016, P0340, P0341 or crankshaft codes, because a timing or correlation fault changes the diagnosis
- Inspect the sensor connector for oil, corrosion, bent or pushed-back pins and a loose lock tab
- Inspect the harness for chafing, heat damage and broken strands, and gently wiggle it with the engine running while listening for a stumble. A generic OBD2 reader cannot display the camshaft signal itself; that needs an oscilloscope or manufacturer-level software
- Check the sensor tip and mounting for oil, debris and a loose fit
- Test supply voltage, ground and signal against the manufacturer specification, ideally with the engine hot
- Inspect the camshaft pulse wheel and check cam timing if the sensor and wiring are good
- Clear the code and road-test, and confirm it does not return
How much does P0344 cost to fix on a Volkswagen? (EUR)
Estimated repair costs for P0344 in EUR, compiled across makes. Expect Volkswagen parts and labour towards the upper end of each range.
| Repair | Parts Cost | Labor Cost | Total Estimate | DIY Difficulty |
|---|---|---|---|---|
| Workshop diagnosis of an intermittent fault | €0–€0 | €30–€80 | €30–€80 | Professional |
| Replace camshaft position sensor | €20–€80 | €30–€120 | €50–€200 | Moderate |
| Repair wiring or connector to sensor | €10–€50 | €50–€150 | €60–€200 | Moderate |
| Replace cam cover gasket and clean the sensor connector (oil contamination) | €60–€200 | €100–€350 | €160–€550 | Moderate |
| Replace timing chain and tensioner | €100–€400 | €300–€1000 | €400–€1400 | Professional |
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
Codes related to P0344
These codes are often seen alongside P0344 or point to related issues, on any make:
Looking for the full P0344 reference (all makes, full diagnosis flow, complete repair cost matrix)? See the main P0344 guide
Diagnose P0344 on your Volkswagen
Your car logged P0344. Skanyx reads it on a standard OBD2 adapter (Bluetooth LE on iPhone), tells you whether it is safe to keep driving, and shows the €30-€1400 repair range so you know the number before a shop quotes you. Free on iPhone and Android, and you do not need to be a mechanic to read it.
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