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C0330 Porsche 968 Diagnostic Trouble Code

C0330 Porsche 968 code definition:
C0330 is a kind of OBD-II Diagnostic C-Chassis Diagnostic Trouble Code for Porsche 968.

C0330 Porsche 968 is defined as Knock Sensor Circuit Range Performance (Bank 1 or Single Sensor). This refers to camshaft timing, which in this case is over-retarded. The PCM then uses this data to provide the right strategies for the fuel delivery and ignition timing of the engine.

Symptoms

Symptoms of a C0330 Porsche 968 diagnostic trouble code may include:

• Reduction in engine performance, especially at low RPM levels
• Vacuum leak on the engine
• Diminished fuel efficiency
• If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes : Fuel with a large percentage of sulfur will clog the DPF quickly The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction. Dirty air cleaner element Damaged DPF

Common Misdiagnoses

1. TP Sensor Learn Not Complete Problem
2. Low Coolant Circuit Problem
3. Cruise Control System - Vehicle Accel Too High Problem
4. TFP Valve Position Switch-Drive Without Drive Ratio Problem
5. Problem

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. Use the DVOM to test resistance and continuity on all system circuits if actuator and sensor resistance levels are in compliance with manufacturer's specifications.

Process Tips

Diagnostic trouble code C0330 Porsche 968 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before C0330 Porsche 968.

Fortunately, C0330 Porsche 968 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

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