C0719 Diagnostic Trouble Code

C0719 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 C0719 diagnostic trouble code may include:

Cherry red hot catalytic converter
Poor acceleration
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 :

A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Faulty IMRC actuator relay (if equipped)
An air leak forward of the DPF will change the sensor readings resulting in the code

Repair Processes :

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. 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.

Process Tips

Diagnostic trouble code C0719 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 C0719.

Fortunately, C0719 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0719 Trouble Code For Specific Cars

C0719 Morris Cowley Brake Pedal Input Circuit Ground Short
C0719 Fiat 8 Hp Lamp Dome Input Circuit Short To Battery
C0719 Seat Mii Injector High Side Short To GND Or VBATT - Bank 2
C0719 Reliant Gtc Gate Select Actuator Circuit / Open [left / right motion]
C0719 Ac Greyhound ABS Functions Temporarily Disabled
C0719 Jeep Cj3 Seat Driver Rear Down Switch Circuit Short To Ground
C0719 Simca 11 Intake Manifold Runner Control (Bank 1) Stuck Open