C3169 Diagnostic Trouble Code

C3169 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 C3169 diagnostic trouble code may include:

Misfire
Misfire
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

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.
An air leak forward of the DPF will change the sensor readings resulting in the code

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. Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio. If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve.

Process Tips

Diagnostic trouble code C3169 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 C3169.

Fortunately, C3169 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C3169 Trouble Code For Specific Cars

C3169 Chevrolet California Driver Power Window Down Switch Circuit Failure
C3169 Fiat Bravo 2 Lamp Headlamp Input Circuit Short To Ground
C3169 Wolseley Hornet SCP (J1850) Invalid or Missing Data for Suspension
C3169 Pierce-arrow 8 Engine Oil Temperature Sensor Range/Performance
C3169 Riley Pathfinder Hydraulic Clutch Actuator Valve Signal Fault
C3169 Packard Clipper Driveline Disconnect Switch Input Circuit
C3169 Geely Mk Oil Change Lamp Circuit Failure