B1441 Diagnostic Trouble Code

B1441 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 B1441 diagnostic trouble code may include:

Fuel pressure too low
Rich or lean exhaust
Diminished fuel efficiency
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.
Faulty IMRC actuator/sensor

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.

Process Tips

Diagnostic trouble code B1441 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 B1441.

Fortunately, B1441 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1441 Trouble Code For Specific Cars

B1441 Lotus Esprit Traction Control Module Request Circuit Failure
B1441 Pag Nick Driver Memory Power Switch Indicator Circuit Short to Battery
B1441 Volkswagen Crafter Reverse Output Circuit
B1441 Austin A40 Autolamp Delay Increase Circuit Open
B1441 Rolls-royce Silver Spur Idle Air Control Overspeed Error
B1441 Volvo V4
B1441 Salmson S.4.61 Illuminated Entry Input Short Circuit To Battery