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 Eshelman Sport Car Injection Pump Fuel Metering Control "B" Malfunction (Cam/Rotor/Injector)
B14F7 Suzuki Sx4 I Mirror Driver Switch Assembly Circuit Short To Battery
B14F7 Porsche 965 Fuel level Sensor Circuit High Input
B14F7 Citroen 10 Hp Fan Control Circuit Malfunction
B14F7 Lincoln Premiere Throttle/Pedal Position Sensor/Switch B Circuit High Input
B14F7 Warszawa 223
B14F7 Chevrolet Astrovette Driver Door Handle Circuit Failure