Trouble codes › By vehicle › Nissan Sentra
Common check-engine codes on the Nissan Sentra
2002-2023
Sentras with the 2.5L (2002-2012) share the Altima's crank and camshaft sensor stalling problems and recall campaigns; later 1.8L and 2.0L models use a CVT with its own known issues.
Most common: P0335, P0340, P0420, P0171, P0456, P0700.
Known problems on the Nissan Sentra
- Nissan 2.5L crankshaft and camshaft sensor stalling (P0335, P0340, P0339)
P0335 Crankshaft Position Sensor "A" Circuit
P0335 means the engine computer isn't getting a usable crankshaft position sensor signal, which can cause stalling or a no-start.
On the Nissan Sentra: Crankshaft sensor faults that cause stalling on 2.5L models; Nissan recalls 03V455 and 07V527 covered some vehicles. Check your VIN at nhtsa.gov/recalls.
P0335: causes, can I keep driving, and what to check first →
P0340 Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor)
P0340 means the engine computer isn't getting a usable camshaft position sensor signal, which can cause hard starting.
On the Nissan Sentra: Camshaft sensor faults, sometimes with P0335. Use a quality sensor.
P0340: causes, can I keep driving, and what to check first →
P0420 Catalyst System Efficiency Below Threshold (Bank 1)
P0420 means the catalytic converter on bank 1 isn't cleaning the exhaust well enough, usually a worn converter, an exhaust leak or a lazy oxygen sensor.
On the Nissan Sentra: Catalyst efficiency at higher mileage.
P0420: causes, can I keep driving, and what to check first →
P0171 System Too Lean (Bank 1)
P0171 means bank 1 is running lean (too much air or too little fuel), most often from a vacuum leak or a dirty MAF sensor.
On the Nissan Sentra: Lean: MAF sensor or vacuum leaks.
P0171: causes, can I keep driving, and what to check first →
P0456 Evaporative Emission System Leak Detected (Very Small Leak)
P0456 means the EVAP system has a very small leak, often a gas cap that isn't sealing perfectly.
On the Nissan Sentra: Very small EVAP leaks: start with the gas cap.
P0456: causes, can I keep driving, and what to check first →
P0700 Transmission Control System (MIL Request)
P0700 means the transmission computer has stored its own fault code; read the transmission codes to find the real problem.
On the Nissan Sentra: Transmission fault flag on CVT models. Read the transmission codes (including Nissan's P17F0) and ask a dealer about CVT warranty extensions for your year.
P0700: causes, can I keep driving, and what to check first →
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Common codes and known problems as widely reported for these model years; your vehicle may differ. Check nhtsa.gov/recalls and ask a dealer about service bulletins for your VIN, and confirm in your service information.