Check Engine Code
P0335
Crankshaft Position Sensor A Circuit Malfunction
Severity: high
DIY difficulty: 3/5
Typical cost: $50–$400
What P0335 means
The crank position sensor tells the ECM where the crankshaft is so fuel and spark can be timed correctly. A failing sensor can cause no-starts, stalling, and hard starts.
Symptoms
- Check engine light
- Engine cranks but will not start
- Random stalling (often when hot, then restarts when cool)
- Hard starting
- Erratic tach reading
Likely causes (most common first)
- Failed crank position sensor (most common, often heat-related)
- Damaged reluctor wheel or tone ring on the crank
- Damaged wiring near the exhaust manifold
- Oil contamination of the sensor
Can I keep driving?
High — risk of damage if ignored
Typical repair cost
DIY fixes can start near $50 (parts only). Shop repairs for P0335 typically run up to $400 depending on the underlying cause and vehicle. Start with the most common cause — Failed crank position sensor (most common, often heat-related) — before throwing parts at it.
Related codes
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