P1444 Diagnostic Trouble Code

P1444 is a kind of OBD-II Diagnostic P-Powertrain 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 P1444 diagnostic trouble code may include:

Rich or lean exhaust
Fuel pressure too low
Engine surge
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 relay (if equipped)

Repair Processes :

Now, clear the codes and test-drive the vehicle to see if the code is reset. 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 P1444 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 P1444.

Fortunately, P1444 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1444 Trouble Code For Specific Cars

P1444 Simca 5 Intake Valve Control Solenoid Circuit Low (Bank 2)
P1444 Bizzarrini Gt Brake Switch Malfunction
P1444 Peugeot 607 Electric Air Pump Secondary Failure
P1444 Alfa Romeo 159 ABS Outlet Valve Coil RR Circuit Short To Ground
P1444 Citroen Six Fuel Pump Secondary Circuit Low, High Speed
P1444 Bmw 1600 Cam Sensor Fault
P1444 Rover 825 Ignition Coil D Primary/Secondary Circuit Malfunction