P0146 Trouble Code

View P0146 obd/2 error code description and symptoms. P0146 engine photo

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 P0146

As long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

P0146 Error Code Repair Process :

The rule of P0146 code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of p0146 o2 sensor circuit no activity detected bank 1 sensor 3. Likewise, overriding the OBD P0146 error in system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.

P0146 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.

Common Causes of P0146

A common cause of code P0146 is the failure of P0146 O2 Sensor Circuit No Activity Detected Bank 1 Sensor 3, but there are several other possible causes as well, such as ;

Continuous oil flow to the VCT piston chamber
Faulty Intake Valve Timing Control Solenoid Valve
Damaged VCT phaser
Variable Camshaft Timing (VCT) position circuit poor electrical connection

P0146 code for all cars

You can view according P0146 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+P0146 Renault Talisman

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

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