P0323 Fault Code

Ignition/Distributor Engine Speed Input Circuit Intermittent

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0323 code indicates an issue with the ignition or distributor engine speed input circuit, which may not be providing a consistent signal to the engine control module (ECM). This can lead to incorrect engine timing and performance problems. Common causes include damaged wiring, poor connections, or a faulty ignition coil.

What are the symptoms of the P0323 code?

• Check engine light illuminated
• Engine may stall or fail to start
• Poor engine performance and fuel efficiency
• Rough idling or misfires
• Unusual engine noises, particularly during acceleration

What causes the P0323 code?

• Faulty crankshaft position sensor
• Damaged wiring or connectors in the speed input circuit
• Issues with the ignition control module
• Failure in the engine control module (ECM)
• Intermittent electrical problems due to temperature or movement
• Misalignment of the distributor cap

How to fix P0323?

• Inspect and repair any damaged wiring or connectors in the ignition/distributor circuit
• Replace faulty crankshaft position sensor or ignition coil if necessary
• Check alignment and condition of distributor components
• Clear the error codes and conduct a road test to ensure problem resolution
• Use a multimeter to test the output signal from the speed sensor
• Consult a professional mechanic for further diagnostics if the problem persists