P02B3 Diagnostic Trouble Code

P02B3 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 P02B3 diagnostic trouble code may include:

Diminished fuel efficiency
Fuel pressure too high
Malfunction Indicator Lamp (MIL) illuminated
Engine surge

Possible Causes :

Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
An air leak forward of the DPF will change the sensor readings resulting in the code
Faulty IMRC actuator/sensor

Repair Processes :

If you find a related TSB, the information will often help in diagnosing the code in question as TSBs are crested from many thousands of repairs. Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.

Process Tips

Diagnostic trouble code P02B3 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 P02B3.

Fortunately, P02B3 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P02B3 Trouble Code For Specific Cars

P02B3 Daewoo Brougham Fuel Trim Malfunction (Bank 2)
P02B3 Lincoln Blackwood Throttle Position Input Out of Range High
P02B3 Holden Vk Powertrain Performance Mode Switch Circuit failure
P02B3 Kia Capital Seat Rear Vertical Motor Memory Position Out of Range
P02B3 Holden Vp Pressure Control Solenoid "A" Short Circuit
P02B3 Allard Palm Beach Air Bag Driver Inflator Circuit Resistance Low on Squib
P02B3 Toyota Retro Cruiser Park Brake Valve Solenoid #1 Sense Input Circuit Short to Gound