P01CD Mitsubishi Lancer Evo 9 Diagnostic Trouble Code

P01CD Mitsubishi Lancer Evo 9 code definition:
P01CD is a kind of OBD-II Diagnostic P-Powertrain Diagnostic Trouble Code for Mitsubishi Lancer Evo 9.

P01CD Mitsubishi Lancer Evo 9 shows up when there's an electrical problem that causes the fuel volume regulator to malfunction and open. It's quite an unusual problem and likely intermittent. This is because the barometric pressure sensor is part of the MAF sensor. Sometimes, the MAF's sensing wire can accumulate and get covered with dirt, dust and/or oil residue, which can also lead to the error code.

Symptoms

Symptoms of a P01CD Mitsubishi Lancer Evo 9 diagnostic trouble code may include:
Place of P01CD in engine

Possible Causes :

  • Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
  • An air leak forward of the DPF will change the sensor readings resulting in the code
  • Some aftermarket accessories and performance modifications

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 at the plug wires to make sure they are not burnt or laying on the exhaust. Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble. 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.

Process Tips

Diagnostic trouble code P01CD Mitsubishi Lancer Evo 9 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 P01CD Mitsubishi Lancer Evo 9.

Fortunately, P01CD Mitsubishi Lancer Evo 9 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

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