OBD-II code · Powertrain (generic)
P0320 Ignition/Distributor Engine Speed Input Circuit
A general electrical fault is reported on the engine speed input from the ignition/distributor — open, shorted, or out of plausibility. On older systems this is the distributor pickup; on newer ones it is the crank/cam-derived speed signal feeding the ignition driver.
Is it safe to drive with P0320?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor or pickup failed
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2.5 h
- Emissions test
- Likely to fail
- Parts involved
- Ignition Distributor, Crankshaft Position Sensor
Related codes
- P031DIgnition D Control Signal Circuit/Open
- P031EIgnition D Control Signal Circuit Low
- P031FIgnition D Control Signal Circuit High
- P0321Ignition/Distributor Engine Speed Input Circuit Range/Performance
- P0322Ignition/Distributor Engine Speed Input Circuit No Signal
- P0323Ignition/Distributor Engine Speed Input Circuit Intermittent
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.