P0C15 Lada Roadster Diagnostic Trouble Code

P0C15 Lada Roadster code definition:
P0C15 is a kind of OBD-II Diagnostic P-Powertrain Diagnostic Trouble Code for Lada Roadster.

P0C15 Lada Roadster is described as Fuel System Too Rich, which basically means bank 1's oxygen sensor has detected a rich condition of fuel. This means there's not enough oxygen in the exhaust from too much fuel being delivered into the air and gas mixture for combusion. 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 P0C15 Lada Roadster diagnostic trouble code may include:
  • Faulty PCM
  • The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
  • Poor acceleration
  • Rich or lean exhaust
Place of P0C15 in engine

Possible Causes :

  • The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
  • Fuel with a large percentage of sulfur will clog the DPF quickly
  • A large air leak at or near the number one oxygen sensor would also cause a lean mixture.

Common Misdiagnoses

  1. Crankshaft Position Sensor Circuit Performance Problem
  2. TP Sensor Learn Not Complete Problem
  3. Low Coolant Circuit Problem
  4. Cruise Control System - Vehicle Accel Too High Problem
  5. Kick-Down Switch Failed Short Problem

Repair Processes :

Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness. If you find a related TSB, the information will often help in diagnosing the code in question as TSBs are crested from many thousands of repairs.

Process Tips

Diagnostic trouble code P0C15 Lada Roadster 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 P0C15 Lada Roadster.

Fortunately, P0C15 Lada Roadster is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

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