P0303 on NISSAN SENTRA
What P0303 Means on Your NISSAN SENTRA
Real NISSAN SENTRA Owner Reports (Source: NHTSA Complaints Database)
"I am the first owner of nissan sentra 1.8s 2005. at mileage 74,900, the check engine light turned on and a nissan dealership retrieved the code p0303 cylinder 3 misfiring on september 1, 2012. i also noticed, the coolant started to drop."
"The head gasket failed prematurely on my 2005 nissan sentra at 82,450 miles. there was issues when the vehicle would start up in the mornings or on cold starts. engine would misfire 3-5 seconds after starting. i immediately took the vehicle to my local nissan dealership."
"Number 3 cylinder low compression with only 83k miles on the vehicle. rough engine driving and check engine light on. codes p0300 and p0303 displayed."
Data from NHTSA Vehicle Complaints Database. All reports are filed by vehicle owners directly with the U.S. Department of Transportation.
Common Causes of P0303 on NISSAN SENTRA
Percentages based on NHTSA complaint component analysis for this vehicle.
Complaint Trend by Year
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.
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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.