P052C Lea-francis 2.5-litre Diagnostic Trouble Code
P052C Lea-francis 2.5-litre code definition:
P052C is a kind of OBD-II Diagnostic P-Powertrain Diagnostic Trouble Code for Lea-francis 2.5-litre.
P052C Lea-francis 2.5-litre 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 P052C Lea-francis 2.5-litre diagnostic trouble code may include:
- Engine surge
- Blown fuse (if applicable)
- Lack of power
- The engine oil will exhibit dilution from the ECUs attempts to increase engine temperature. Some vehicles advance the fuel injection timing slightly after top center to afterburn a small amount of fuel to increase exhaust temperatures. Some of this fuel enters the crankcase. When the ECU determines the necessity to regenerate the DPF, the service life of the oil be shortened significantly
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Possible Causes :
- Defective ECU strategies or components will prevent proper regeneration
- 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.
- Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
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Common Misdiagnoses
- Crankshaft Position Sensor Circuit Performance Problem
- TP Sensor Learn Not Complete Problem
- Low Coolant Circuit Problem
- Cruise Control System - Vehicle Accel Too High Problem
- Kick-Down Switch Failed Short Problem
Repair Processes :
With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground.
Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble.
Process Tips
Diagnostic trouble code P052C Lea-francis 2.5-litre 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 P052C Lea-francis 2.5-litre.
Fortunately, P052C Lea-francis 2.5-litre is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.
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