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P0335 Crankshaft Position Sensor A Circuit Malfunction

What it means

The computer isn't getting a good signal from the crankshaft position sensor, which it uses for spark and fuel timing.

Severity: High

Can I drive it? The engine can stall or refuse to start without warning — drive with caution or get it towed if it's stalling.

Common causes (most likely first)

  1. Failed crankshaft position sensor
  2. Damaged wiring/connector
  3. Damaged reluctor (tone) ring

Likely fixes

DIY parts cost
$20–$120
Approximate estimate
Shop repair cost
$150–$400
Approximate estimate, parts + labor
DIY difficulty
Moderate
Varies by vehicle

Cost ranges are rough, approximate U.S. estimates and vary widely by vehicle, region, and parts brand. Always confirm the diagnosis before buying parts.

Parts you may need

Affiliate links are placeholders. Verify fitment for your year/make/model.