P0366 on Volkswagen: How to Diagnose & Fix
Camshaft Position Sensor "B" Circuit Range/Performance (Bank 1)
1 Volkswagen model · 1 documented issue · 1 critical · $1,500-$3,500 repair
P0366 on Volkswagen by model: symptoms, diagnosis and fix
The Passat shares the same EA888 2.0T TSI timing chain tensioner issue as other VW/Audi models. The original tensioner design allows the chain to go slack when the engine is off, and on restart the chain can skip timing. Early revisions of the tensioner were inadequate and VW issued multiple updated part numbers. The Passat is particularly affected in the 2008-2014 model years.
Common Symptoms
- Rattling on cold start
- Check engine light for cam/crank correlation
- Engine misfires
- Loss of power
- Engine will not start (chain jumped)
How to Fix
Replace with the latest revision timing chain tensioner (check VW TSB for current part number). Best practice is to replace the full timing chain kit including chain, tensioner, guides, and cam adjusters. Verify correct timing with a timing chain alignment tool set after installation. Some shops recommend the INA or Febi kits which include all necessary components.
Sources for this issue (1)
P0366 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0366 mean on a Volkswagen?
P0366 stands for "Camshaft Position Sensor "B" Circuit Range/Performance (Bank 1)." This code indicates the 'B' camshaft position sensor on Bank 1 is electrically present but its signal is out of the expected range or inconsistent with the crankshaft position signal. The PCM uses this sensor to track camshaft timing for fuel, spark, and variable valve timing control. A range/performance fault can cause rough idle, hesitation, reduced power, or hard starting. It often points to sensor or timing alignment issues rather than a fully open circuit. On Volkswagen it is documented across 1 model: Passat.
What are the most common causes of P0366?
The most common causes of P0366 are: Failing camshaft position sensor (Bank 1, sensor B), Damaged reluctor/tone ring or excessive air gap, Timing chain/belt stretch or jumped timing, Wiring/connector intermittent fault or corrosion, Oil contamination on the sensor, Variable valve timing actuator fault. The specific cause varies by vehicle.
How much does it cost to fix P0366 on a Volkswagen?
Published repair estimates on Volkswagen range from $1,500 to $3,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0366 on a different make?
View P0366 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.