P0336Crankshaft Position Sensor A Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P0336 means the crankshaft position sensor delivers pulses, but their pattern is implausible: the reference gap is missing or in the wrong place, the number of teeth between the gaps is wrong (58 on a 60-2 wheel) or the module keeps losing synchronisation. GM sets it after at least 4 resynchronisations in under 5 s, a gap not found within 0.4 s running or 1.5 s cranking, or a wrong tooth count in 8 of 10 revolutions, after two trips. Ford's 2023 diesel sets it when the gap of the 60-2 wheel is not recognised for 3 revolutions; GM's LML diesel uses a fault counter over tooth times. Ford petrol engines use P0320 or P0339 for the same checks. Result: misfire, jerking, brief cut-outs while the module resynchronises, and misfire detection is suspended.
- What you may notice
- Misfire, jerking, rough running
- Engine stalls sporadically
- Hard starting
- Check engine light on, misfire codes may be added
- Likely causes
- LikelyTone wheel damaged, bent, loose or teeth clogged with chips
- LikelySensor signal weak or noisy (air gap, ageing)
- PossibleInterference, poor ground or shielding
- PossibleWrong tone wheel or flywheel fitted after a repair
- PossibleLoose contact in the connector
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €60 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.