B1078 Diagnostic Trouble Code

B1078 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 B1078 diagnostic trouble code may include:

Blown fuse (if applicable)
Engine surge
Reduction in engine performance, especially at low RPM levels
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.
Dirty air cleaner element Damaged DPF

Repair Processes :

Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed. 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. Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio.

Process Tips

Diagnostic trouble code B1078 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 B1078.

Fortunately, B1078 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1078 Trouble Code For Specific Cars

B1078 Intermeccanica Indra SCP (J1850) Invalid or Missing Data for Legislated Diagnostics
B1078 Renault Kangoo 2 GPS Antenna Connection Open or Short
B1078 Franklin 11 Needle Lift Sensor Malfunction
B1078 Pontiac Star Chief Flash To Pass Switch Circuit Short To Ground
B1078 Osi 1200 Door Unlock Disarm Switch Circuit Failure
B1078 Saturn Outlook Immobilizer/ECM Communication Error
B1078 Vauxhall Corsa D Pressure Control Solenoid "C" Open Circuit