P1B50 Diagnostic Trouble Code

P1B50 is a kind of OBD-II Diagnostic P-Powertrain 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 P1B50 diagnostic trouble code may include:

Excessive exhaust leak
Hesitation upon acceleration
Malfunction Indicator Lamp (MIL) illuminated
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.

Repair Processes :

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. 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. Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed.

Process Tips

Diagnostic trouble code P1B50 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 P1B50.

Fortunately, P1B50 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1B50 Trouble Code For Specific Cars

P1B50 Audi 4000 All Doors Unlock Relay Circuit Failure
P1B50 Panhard Et Levassor Gordon-bennet Driver Power Window Motor Circuit Short To Battery
P1B50 Buick Le Sabre Cylinder 8 Injector Circuit Low
P1B50 Lotus 79 Torque Converter/Brake Switch B Circuit Low
P1B50 Proton Satria Fuel Tank Pressure Sensor Circuit Failure
P1B50 Jaguar Xj-13 Seat Driver Front Up Switch Circuit Failure
P1B50 Ford Pinto Mirror Passenger Drive Circuit Failure