B1876 Diagnostic Trouble Code

B1876 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 B1876 diagnostic trouble code may include:

Excessive exhaust leak
Hesitation upon acceleration
Malfunction Indicator Lamp (MIL) illuminated
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

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.
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.

Repair Processes :

Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble. 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 B1876 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 B1876.

Fortunately, B1876 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1876 Trouble Code For Specific Cars

B1876 Fairthorpe Tx Injector Circuit Malfunction - Cylinder 7
B1876 Italdesign Machimoto SCP (J1850) Lack of Acknowledgment for Door Locks
B1876 Volvo 264 SCP (J1850) Invalid or Missing Data for Door Locks
B1876 Honda Acty Pressure Control Solenoid B Control Circuit / Open
B1876 Itala Racecar SCP (J1850) Invalid or Missing Data for Vehicle Speed Control
B1876 Fageol Fageol Injector Circuit Malfunction - Cylinder 10
B1876 Mercedes-benz 219 Air Bag Memory Clear Circuit Short To Ground