C0167 Diagnostic Trouble Code

C0167 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 C0167 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.
Reduction in engine performance, especially at low RPM levels

Possible Causes :

An air leak forward of the DPF will change the sensor readings resulting in the code
Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
Fuel with a large percentage of sulfur will clog the DPF quickly

Repair Processes :

Now, clear the codes and test-drive the vehicle to see if the code is reset. 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. Look at the plug wires to make sure they are not burnt or laying on the exhaust.

Process Tips

Diagnostic trouble code C0167 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 C0167.

Fortunately, C0167 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0167 Trouble Code For Specific Cars

C0167 Peugeot Peugette Engine Coolant Temperature Circuit High Input
C0167 Mercedes-benz 420 Air Bag Safing Sensor Output Circuit Failure
C0167 Alpine A106 Air Bag Memory Clear Circuit Short To Battery
C0167 Ferrari F355 Intermediate Speed Sensor (ISS) Malfunction
C0167 Standard Superior Lamp Headlamp Low-Beam Circuit Short To Ground
C0167 Wartburg 312
C0167 Honda Nsx Rear Cargo Door Lock Circuit Short to Ground