B196F Diagnostic Trouble Code

B196F 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 B196F diagnostic trouble code may include:

Engine surge
Blown fuse (if applicable)
Lack of power
Diminished fuel efficiency

Possible Causes :

The Mass Airflow sensor is a hot wire that senses the volume of air entering the intake manifold. The computer uses this information to control fuel mixture.
Defective ECU strategies or components will prevent proper regeneration
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

If the engine displays a miss and there wasn't a code, determine which cylinder is misfiring. If the exhaust manifold is visible, spay or pour a small amount of water on each cylinder exhaust port. Water will evaporate immediately on good cylinders and slowly on the missing cylinder. If this can't be accomplished pull the plugs and check the condition. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector. If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve.

Process Tips

Diagnostic trouble code B196F 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 B196F.

Fortunately, B196F is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B196F Trouble Code For Specific Cars

B196F Darracq 4-litre Heated Catalyst Efficiency Below Threshold (Bank l)
B196F Geo Prizm Oil Change Lamp Circuit Short To Ground
B196F Prince Alsild Fuel Rail Pressure Sensor Circuit Low Input
B196F Mg Mga Air Suspension Vent Solenoid Output Circuit Failure
B196F Fiat 124 Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
B196F Porsche 907 Front Wiper Select Switch "B" Short to Ground
B196F Fisker Latigo Left Rear Center Sensor Circuit Fault