B2033 Diagnostic Trouble Code

B2033 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 B2033 diagnostic trouble code may include:

Faulty PCM
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Poor acceleration
Diminished fuel efficiency

Possible Causes :

Faulty IMRC actuator/sensor
A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.

Repair Processes :

If the scan tool has that capability, and the scan tool can operate the IMRC valves, then the problem is either resolved and a simple code clearing is all that's left or a new PCM would be called for. Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness.

Process Tips

Diagnostic trouble code B2033 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 B2033.

Fortunately, B2033 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B2033 Trouble Code For Specific Cars

B2033 Bitter Type Iii Brake Pressure Switch Input Circuit Failure
B2033 Proton Arena Fuel Sender Circuit Failure
B2033 Cisitalia 202 Exhaust Valve Control Solenoid Circuit Low (Bank 1)
B2033 Lotus Extreme Traction Control Motor Potentiometer Circuit Open
B2033 Mg Mga Air Suspension Vent Solenoid Output Circuit Failure
B2033 Kia Rondo Secondary Air Injection System Switching Valve A Circuit Malfunction
B2033 Chevrolet Corvette C4 Driver Side, Side mount Airbag Low capacitance on Squib