B1930 Diagnostic Trouble Code

B1930 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 B1930 diagnostic trouble code may include:

Engine surge
Blown fuse (if applicable)
Lack of power
Rich or lean exhaust

Possible Causes :

Faulty IMRC actuator relay (if equipped)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

It should be pretty close to battery voltage (12 volts). If not, then this is the circuit that has the problem. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector.

Process Tips

Diagnostic trouble code B1930 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 B1930.

Fortunately, B1930 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1930 Trouble Code For Specific Cars

B1930 Alpine A108 Air Bag Memory Clear Circuit Short To Ground
B1930 Ford Sierra Mirror Passenger Right Circuit Open
B1930 Atalanta 2-litre Air Temperature Internal Sensor Circuit Failure
B1930 Triumph Scrambler Xe PCM - IDM Communications Error
B1930 Mercedes 122f 16hp A/C Temperature Sensor Out of Range
B1930 Chevrolet Superior Electronic Throttle Monitor Cruise Disable
B1930 Daewoo Tosca Gear 5 Incorrect ratio