C2419 Diagnostic Trouble Code

C2419 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 C2419 diagnostic trouble code may include:

Faulty O2 Sensor
Lack of power
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Diminished fuel efficiency

Possible Causes :

A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Faulty IMRC actuator relay (if equipped)
Fuel with a large percentage of sulfur will clog the DPF quickly

Repair Processes :

Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. 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.

Process Tips

Diagnostic trouble code C2419 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 C2419.

Fortunately, C2419 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C2419 Trouble Code For Specific Cars

C2419 Isuzu Stylus
C2419 Oldsmobile Lss Cylinder Head Temp Sensor Low Input
C2419 Talbot Samba Mirror Passenger Left Circuit Open
C2419 Chevrolet Corvette Driver Side, Side mount Airbag Circuit Short to Vbatt
C2419 Proton Wira Fuel Temperature Sensor #1 Circuit Open
C2419 De Dion Bouton 18 HO2S Heater Resistance (Bank 1 Sensor 3)
C2419 Volkswagen California Reverse Engagement Error