B14F7 Diagnostic Trouble Code

B14F7 is a kind of OBD-II Diagnostic B-Body 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 B14F7 diagnostic trouble code may include:

Poor acceleration
Cherry red hot catalytic converter
Possible spark knock (detonation / pre-ignition)
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

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.
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.

Repair Processes :

You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data. 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 B14F7 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 B14F7.

Fortunately, B14F7 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B14F7 Trouble Code For Specific Cars

B14F7 Lancia Ecv Speed Wheel Sensor Rear Center Circuit Open
B14F7 Seat Cordoba 2 Injector Circuit Open / Shorted - Cylinder #5
B14F7 Intermeccanica Indra SCP (J1850) Invalid or Missing Data for Legislated Diagnostics
B14F7 Rover 100 Idle Control System Malfunction
B14F7 Mazda Atenza Transmission Transfer Case Contact Plate Power Short To Battery
B14F7 Isuzu Vehicross SCP (J1850) Invalid or Missing Data for Vehicle Security
B14F7 Cadillac Sts Dimmer switch Circuit Short to Gnd