P2962 Ferrari 255 Diagnostic Trouble Code
P2962 Ferrari 255 code definition:
P2962 is a kind of OBD-II Diagnostic P-Powertrain Diagnostic Trouble Code for Ferrari 255.
P2962 Ferrari 255 is defined as Camshaft Position Sensor A Circuit Low. This means the CMP (camshaft position) sensor circuit on engine bank 1 sends an irregular reading. 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 P2962 Ferrari 255 diagnostic trouble code may include:
- The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
- Faulty PCM
- If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
- Diminished fuel efficiency
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Possible Causes :
- The Mass Airflow sensor is a hot wire that senses the volume of air entering the intake manifold. The computer uses this information to control fuel mixture.
- Defective ECU strategies or components will prevent proper regeneration
- An air leak forward of the DPF will change the sensor readings resulting in the code
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Common Misdiagnoses
- Vehicle Speed Output Circuit Problem
- Cruise Control Servo Indicates Low Problem
- A/C System High Pressure High Temperature Problem
- PCM Stack Overrun Problem
- Transmission Control Module Reprogrammable Memory Problem
Repair Processes :
Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector.
It should be pretty close to battery voltage (12 volts). If not, then this is the circuit that has the problem.
Process Tips
Diagnostic trouble code P2962 Ferrari 255 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 P2962 Ferrari 255.
Fortunately, P2962 Ferrari 255 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.
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