B1927 Diagnostic Trouble Code

B1927 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 B1927 diagnostic trouble code may include:

Possible spark knock (detonation / pre-ignition)
Poor fuel economy
The engine oil will exhibit dilution from the ECUs attempts to increase engine temperature. Some vehicles advance the fuel injection timing slightly after top center to afterburn a small amount of fuel to increase exhaust temperatures. Some of this fuel enters the crankcase. When the ECU determines the necessity to regenerate the DPF, the service life of the oil be shortened significantly
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.
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. Once located, visually inspect the connectors and wiring. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors.

Process Tips

Diagnostic trouble code B1927 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 B1927.

Fortunately, B1927 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1927 Trouble Code For Specific Cars

B1927 Maserati Quattroporte Vi Transmission Fluid Temperature Sensor Circuit Low Input
B1927 Saturn Astra Illuminated Entry Relay Short To Ground
B1927 Bucciali Tav Cylinder #1 High To Low Side Open
B1927 Chevrolet Lacetti ECU A/D Converter
B1927 Ford Model Akt Mirror Driver Vertical Switch Circuit Failure
B1927 Fiat Egea Lamp Seat Belt Circuit Open
B1927 Rover 60 Ignition Coil C Primary Circuit Malfunction