P0322: Ignition/Distributor Engine Speed Input Circuit No Signal
Can you still drive? No. Without an engine speed signal, the engine will not run. The vehicle will need to be towed for repair.
What Does P0322 Mean?
Code P0322 indicates that the ECM is receiving no engine speed signal from the ignition system or distributor. Without this critical signal, the engine may not start or may stall immediately after cranking. This is a fundamental input required for ignition timing and fuel injection.
Need to read your codes?
An OBD-II scanner lets you read and clear diagnostic trouble codes from your vehicle's computer. Most scanners work with any car made after 1996.
Browse OBD-II Scanners on AmazonCommon Causes
- Failed crankshaft position sensor
- Broken wiring to sensor
- Failed distributor module
- Damaged reluctor ring or trigger wheel
- Corroded sensor connector
Symptoms
- Engine cranks but won't start
- Engine stalls and won't restart
- No tachometer reading
- Check engine light on
Diagnostic Steps
- 1Verify no RPM signal on scan tool while cranking
- 2Test crankshaft position sensor with multimeter for resistance
- 3Inspect sensor wiring for breaks or damage
- 4Check sensor air gap to reluctor ring
- 5Test for sensor signal output with an oscilloscope while cranking
Recommended Parts & Tools
crankshaft position sensor
sensor connector repair kit
Estimated Repair Cost
| Type | Estimated Cost |
|---|---|
| Total Repair Cost Range | $75 - $400 |
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Frequently Asked Questions
Can a no-signal code be intermittent?
Yes, a failing sensor or loose connector can cause intermittent signal loss. The engine may start sometimes and stall randomly at other times.
Is P0322 always the crank sensor?
Usually, but not always. The fault could also be in the wiring, connector, or the reluctor ring that the sensor reads from.
Community Fix Reports
Community reports are user-submitted and not verified by Auto AI Buddy. Results may vary.
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