B14C0 Diagnostic Trouble Code

B14C0 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 B14C0 diagnostic trouble code may include:

Excessive exhaust leak
Hesitation upon acceleration
Malfunction Indicator Lamp (MIL) illuminated
Reduction in engine performance, especially at low RPM levels

Possible Causes :

A faulty oxygen sensor. This will set a code in itself, however, a faulty oxygen sensor does not automatically condemn the sensor. The code just means that the sensor signal was not within specifications. An air leak or any of the above will cause an erroneous signal. There is a multitude of O2 codes relating to O2 performance which gives a clue to the problematic area.
Some aftermarket accessories and performance modifications
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.

Repair Processes :

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. Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble. Replace the oxygen sensor that is downstream from the catalytic converter on the side of the engine that does not contain cylinder #1. Also, if a oxygen sensor code stating "heater circuit malfunction" the sensor has most probably failed.

Process Tips

Diagnostic trouble code B14C0 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 B14C0.

Fortunately, B14C0 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B14C0 Trouble Code For Specific Cars

B14C0 Simca 1000 Intake Manifold Runner Control (Bank 1) Stuck Closed
B14C0 Puma Gte Fuel Temperature Sensor #2 Circuit Failure
B14C0 Opel Corsa D Detent Signal Missing During Unlatch
B14C0 Gsm Delta Passenger Sid, Side crash sensor mount fault
B14C0 Austro-daimler 27 Aux Heater Blower Faulted
B14C0 De Tomaso Mangusta Hydraulic Clutch Actuator Valve Circuit Failure
B14C0 Hudson Rambler Right Front Sensor Circuit Fault