P184B Diagnostic Trouble Code

P184B 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 P184B diagnostic trouble code may include:

Corroded or damaged connector
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Lack of power
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble.

Process Tips

Diagnostic trouble code P184B 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 P184B.

Fortunately, P184B is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P184B Trouble Code For Specific Cars

P184B Daimler Daimler Headlamp Aim Output Relay Circuit Failure
P184B Volkswagen Kombi Right Power Sliding Door Open/Close Output Circuit Short to Battery
P184B Volkswagen K70 Right Front Vertical Accelerometer Circuit Failure
P184B Volvo 850
P184B Mitsubishi Sigma Aux Heater Glow Plug Circuit Short to Ground
P184B Holden Lc Power Steering Pressure sensor Circuit Intermittent
P184B Renault Racoon Heated Windshield Input Short to Ground