P3148 Saturn Lw OBD Code

OBD/2 P3148 error code description and symptoms.

The Transmission Fluid Pressure Switch allows the engine's control module (PCM) or Transmission Control Module (TCM) to use hydraulic fluid to engage the clutches in the transmission to allow for smoother shifting while driving. If the PCM or TCM detects an issue with the hydraulic clutch or the pressure switch, the PCM or TCM will set code P3148

One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.

P3148 Saturn Lw Error Code Repair Process :

If your vehicle failed a P3148 test and the P3148 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses seat front vertical motor memory position out of range a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look seat front vertical motor memory position out of range: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature.

Common Causes of Saturn Lw P3148 OBD2 Code

A common cause of code P3148 is the failure of Seat Front Vertical Motor Memory Position Out of Range, but there are several other possible causes as well, such as ;

Continuous oil flow to the VCT piston chamber
Faulty Variable Camshaft Timing (VCT) position solenoid
Faulty Variable Camshaft Timing (VCT) position solenoid
Foreign matter caught in fuel filler cap

P3148 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

About Us | Contact | Privacy

P3148 Saturn Lw OBD Code

P3148 Saturn Lw Error Code Repair Process :

Common Causes of Saturn Lw P3148 OBD2 Code

P3148 code for other Saturn cars