U014D Diagnostic Trouble Code

U014D is a kind of OBD-II Diagnostic U-Network Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a U014D diagnostic trouble code may include:

Corroded or damaged connector
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Lack of power
Rich or lean exhaust

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.
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.

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. Look at the plug wires to make sure they are not burnt or laying on the exhaust. You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data.

Process Tips

Diagnostic trouble code U014D 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 U014D.

Fortunately, U014D is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U014D Trouble Code For Specific Cars

U014D Citroen Ds Fuel Level Sensor B Circuit High
U014D Riley 2.5 Hood Switch Circuit Short To Battery
U014D Railton 16 Fuel Temperature Sensor A Circuit High Input
U014D Jowett 10 Seat Front Vertical Motor Position Out of Range
U014D Toyota Caserta O2 Sensor Circuit Malfunction (Bank 1 Sensor 2)
U014D Chrysler Vision Exhaust Pressure Sensor Malfunction
U014D Lada Vaz 2107 Shift Solenoid C Intermittent