P0326 on Hyundai Accent
Knock/Combustion Vibration Sensor A Circuit Range/Performance
Methodology: Reviewed against the SAE J2012 generic DTC definition and NHTSA owner-complaint patterns, then scoped to Hyundai Accent context without treating complaints as confirmed diagnoses.
Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).
- SAE J2012 Diagnostic Trouble Code Definitions — Generic diagnostic trouble code definition reference for P0326.
- NHTSA recalls, complaints, and manufacturer communications — Used to check public owner complaint context, recall status, and safety-related manufacturer communications by VIN or vehicle.
Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.
What P0326 Means on Your Hyundai Accent
P0326 is a diagnostic trouble code indicating: Knock/Combustion Vibration Sensor A Circuit Range/Performance. This code relates to the ignition system system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.
Real Hyundai Accent Owner Reports
Source: NHTSA Complaints Database
"While drive about 60 mph the check engine light came on (02/20/2018). i went to get the codes read by a local auto parts store. the codes p050a and p0326 were identified. i have had many issues with the check engine light coming on with the same codes."
"Once i am driving on the highway the car seems to loose power almost like if the car wants to shut off the rmp goes low then the check engine light has turned on."
"As i go up a hill or rapidly accelerate on an incline the check engine light will come on. the problem points to the knock sensor (code p0326) being at fault. this does not happen often but when it does it is disconcerting."
All reports filed by vehicle owners directly with the U.S. Department of Transportation.
📊 Complaint Trend by Model Year
Common Causes on Hyundai Accent
Based on NHTSA complaint component analysis for this vehicle.
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
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3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.