C2720 Diagnostic Trouble Code

C2720 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 C2720 diagnostic trouble code may include:

Poor fuel economy
Possible spark knock (detonation / pre-ignition)
Misfire
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.

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. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. Pull the connectors apart and carefully look at the terminals (the metal parts) inside the connectors.

Process Tips

Diagnostic trouble code C2720 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 C2720.

Fortunately, C2720 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C2720 Trouble Code For Specific Cars

C2720 Ferrari 340 Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage
C2720 Locomobile 40 Timing Reference High Resolution Signal A Malfunction
C2720 Kia Stinger Service Continuous Codes
C2720 Nissan R300 Crankshaft Position Sensor A Circuit Low Input
C2720 Plymouth Pronto Evaporative Emission Control System Vent Control Circuit Shorted
C2720 Chrysler Airflow Engine Oil Temperature Sensor Low
C2720 Lexus Ls 350 TCU Detected IPE Circuit Malfunction