P0320 Fault Code

Ignition/Distributor Engine Speed Input Circuit Malfunction

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

The P0320 fault code indicates a malfunction in the ignition or distributor engine speed input circuit. This code is triggered when the Engine Control Module (ECM) detects a problem with the signal coming from the crankshaft position sensor or camshaft position sensor, which are crucial for determining engine speed. When these sensors fail or there is a fault in their circuit, it can lead to misfires, poor acceleration, or stalling.

What are the symptoms of the P0320 code?

• Engine misfires or runs roughly.
• Reduced power or acceleration issues.
• Engine stalling or failing to start.
• Check engine light illuminated on the dashboard.

What causes the P0320 code?

• Damaged or corroded wiring in the ignition or distributor circuit.
• Faulty crankshaft or camshaft position sensors.
• Poor connections or wiring harness issues.
• Malfunctioning ignition control module or ECM.

How to fix P0320?

• Inspect the wiring and connectors for any damage, corrosion, or loose connections.
• Test the crankshaft and camshaft position sensors for proper operation and replace if necessary.
• Check the ignition control module and ECM for proper function, replacing them if needed.
• Clear the fault codes and perform a test drive to ensure the issue is resolved.