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P0321 Audi Code - Ignition Engine Speed Input Circuit Range/Performance

- Code Popularity: 44,240 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P0321 Audi?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Ignition/Distributor engine speed sensor
  • Ignition/Distributor engine speed sensor harness is open or shorted
  • Ignition/Distributor engine speed sensor circuit poor electrical connection
  • Faulty Crankshaft Position sensor
  • Low battery charge
  • Faulty Engine Control Module (ECM)
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How to Fix the DTC P0321 Audi?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0321 Audi code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

When is the Code Detected?

The P0321 code is triggered when the Engine Control Module (ECM) detects the signal is out of range.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Lack/Loss of Power
  • The engine may be harder to start
  • The engine may stumble or stall

Code P0321 Audi Description

Ignition failure sensor is used to check whether the spark ignition is occurred correctly or not and also used to tachometer drive. The sensor monitors the voltage difference between a resistance which is on the battery circuit for ignition coil. When the ignition coil works properly, the electric current through the resistance is detected as voltage drop. This is confirmed for every ignition event with the crankshaft sensor and the camshaft sensor. If ECM detects a malfunction, no ignition is possible, so the engine would not start. If there is no ignition signal for a predetermined cycle for one or two ignition coils, an ignition coil circuit failure exists.

OBDII Code P0321 Audi - Ignition Engine Speed Input Circuit Range/Performance - AutoCodes.com
P0321 Audi Code - Ignition Engine Speed Input Circuit Range/Performance

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Code P0321 Audi comments

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