B1633 Diagnostic Trouble Code

B1633 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 B1633 diagnostic trouble code may include:

Hesitation upon acceleration
Excessive exhaust leak
Rich or lean exhaust
Engine surge

Possible Causes :

Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
Some aftermarket accessories and performance modifications

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. Look at the plug wires to make sure they are not burnt or laying on the exhaust.

Process Tips

Diagnostic trouble code B1633 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 B1633.

Fortunately, B1633 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1633 Trouble Code For Specific Cars

B1633 Chevrolet Vectra Engine Coolant sensor out of range/ECT Sensor Out Of Self Test Range
B1633 Toyota Avallon NVM RF HR Failure
B1633 Nsu Tt Cylinder 12 Misfire Detected
B1633 Chevrolet Copper-cooled Driver Side Airbag Fault
B1633 Allard K1 Air Bag Driver Circuit Failure
B1633 Hyundai Marcia
B1633 Toyota Kluger Oil Pressure Control Solenoid Circuit Malfunction