Trouble code
P0335
Crankshaft Position Sensor A Circuit Malfunction
What P0335 means
The computer is not getting a usable crankshaft position signal. This is the reference the engine uses for spark and injection timing.
Symptoms you may notice
- Engine cranks but will not start
- Stalling without warning
- Hard starting when hot
Common causes, cheapest first
- Failed crankshaft position sensor
- Damaged reluctor ring
- Wiring or connector fault
- Metal debris on the sensor tip
Before you buy anythingIntermittent stalling that gets worse as the engine warms up is the classic pattern for a failing crank sensor. It can strand you, so do not put this one off.
What to do next
- Confirm the code with your own scan tool, or have it read free at a chain parts store.
- Decode your VIN so you know your exact engine and build date.
- Work down the causes above from cheapest to most expensive.
- Search NHTSA for a recall or service bulletin covering this symptom on your vehicle.
- Read the ignition buying guide before ordering.
P0335 is a generic OBD-II code, standardized across every make and model sold in the US from 1996 onward. The meaning is the same on any vehicle; the specific part and its location are not.
Parts
Parts commonly needed for P0335
These go to Amazon. We earn a commission if you buy, at no extra cost to you — see our affiliate disclosure. Which one you actually need depends on diagnosis — read the note above first.
Confirm fitment against your VIN on the listing page before ordering. A part that matches your year and model can still be wrong for your build date or engine code.