Powertrain
generic / SAE
P0321
Ignition/Distributor Engine Speed Input Circuit Range/Performance
Engine speed input from the ignition/distributor is in electrical range but plausibility check fails — slow response, drift, or noise.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number3 / 21
Possible causes
- Sensor drift or pickup gap wrong high
- Sensor element aged beyond calibration window low
- Sensor mounting loose - signal damping low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–600 €
- Estimated time: 0.5–2.5 h
- Component: ignition distributor
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012