P0320 – Ignition/Distributor Engine Speed Input Circuit
Description
The engine speed input signal from the ignition/distributor is missing or incorrect.
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A diagnostic scanner with live data, freeze-frame information and the right system access can help you investigate the actual cause before replacing parts.
Compare Diagnostic ScannersSymptoms
- No start
- Rough idle
- Hesitation
- Poor acceleration
- Check engine light
Causes
- Faulty crank sensor
- Damaged wiring
- Loose connector
- ECU issue
- Distributor failure
Diagnosis
- Inspect wiring
- Test crank sensor
- Check connectors
- Scan live data
- Test distributor
Repair
- Replace crank sensor
- Repair wiring
- Fix connectors
- Replace distributor
- Update ECU
