C2746 Diagnostic Trouble Code

C2746 is a kind of OBD-II Diagnostic C-Chassis 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 C2746 diagnostic trouble code may include:

Malfunction Indicator Lamp (MIL) illuminated
Carbon Buildup on O2 Sensor
Poor fuel economy
Rich or lean exhaust

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
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. Now, clear the codes and test-drive the vehicle to see if the code is reset.

Process Tips

Diagnostic trouble code C2746 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 C2746.

Fortunately, C2746 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C2746 Trouble Code For Specific Cars

C2746 Ford Triton Misfire Rate Catalyst Damage Fault - Bank 1
C2746 Fairthorpe Mk Injector Circuit Malfunction - Cylinder 5
C2746 Volvo 140 SCP (J1850) Invalid or Missing Data for Chassis Status Request
C2746 Armstrong Siddeley Special Air Suspension Rear Height Sensor High (SE) Signal Circuit Short To Ground
C2746 Lotec Testa Torque Converter Clutch Circuit Malfunction
C2746 Toyota Fj Cruiser Oil Change Lamp Circuit Failure
C2746 Riley Mr Hydraulic Base Brake Failure