B18E3 Diagnostic Trouble Code

B18E3 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 B18E3 diagnostic trouble code may include:

Cherry red hot catalytic converter
Poor acceleration
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Reduction in engine performance, especially at low RPM levels

Possible Causes :

An air leak forward of the DPF will change the sensor readings resulting in the code
Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
Fuel with a large percentage of sulfur will clog the DPF quickly

Repair Processes :

Now, clear the codes and test-drive the vehicle to see if the code is reset. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground.

Process Tips

Diagnostic trouble code B18E3 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 B18E3.

Fortunately, B18E3 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B18E3 Trouble Code For Specific Cars

B18E3 Abarth Lancia A/C Compressor Temperature Sensor Malfunction
B18E3 Ferrari F430 Spider Internal Control Module ROM Error (Module Identification Defined by SAE J1979)
B18E3 Toyota 700 No Communication With Traffic MasterModule
B18E3 Excelsior Albert Injection Pump Fuel Metering Control "B" Range/Performance (Cam/Rotor/Injector)
B18E3 Hafei New Quing Passenger Side Crash Sensor Communication Fault (Non SCP)
B18E3 Volkswagen Crossgolf RF CORNER LAMP OUTPUT Ckt Short to Battery
B18E3 Marmon 34 Transmission 4-Wheel Drive Low Indicator Open Circuit