C16A2 Diagnostic Trouble Code

C16A2 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 C16A2 diagnostic trouble code may include:

Reduction in engine performance, especially at low RPM levels
Vacuum leak on the engine
Diminished fuel efficiency
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.
Dirty air cleaner element Damaged DPF

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 the scan tool has that capability, and the scan tool can operate the IMRC valves, then the problem is either resolved and a simple code clearing is all that's left or a new PCM would be called for.

Process Tips

Diagnostic trouble code C16A2 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 C16A2.

Fortunately, C16A2 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C16A2 Trouble Code For Specific Cars

C16A2 Ferrari 412 Intake Air Temperature Sensor 2 Circuit Range/Performance
C16A2 Delahaye Gfa Hydraulic Pressure Sensor Range/Performance
C16A2 Ginetta G23 Oil Temperature Sensor Circuit Open
C16A2 Mazda 600 Transmission Transfer Case Contact Plate 'D' Circuit Failure
C16A2 Renault Gabbiano Glow Plug Circuit High Side Low Input
C16A2 Frazer Nash Sebring NVM Alarm Data Failure
C16A2 Maserati 422 Transmission Fluid Pressure High