P3374 Trouble Code

View P3374 obd/2 error code description and symptoms. P3374 engine photo

Engine Coolant Temperature (ECT) Circuit High Input Indicates the sensor signal is greater than Self-Test maximum. The ECT sensor maximum is 4.6 volts or -50 C (-58 F). Note on some vehicles that are not equipped with an ECT sensor, CHT can be used and can set this DTC. Open circuit in harness Sensor signal short to power Damaged PCM Improper harness connection Damaged sensor ECT V PID reading greater than 4.6 volts with key ON and engine OFF or during any engine operating mode indicates a hard fault.

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.

P3374 Error Code Repair Process :

The rule of P3374 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 courtesy lamp output ckt short to battery. Likewise, overriding the OBD P3374 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.

P3374 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 P3374

A common cause of code P3374 is the failure of COURTESY LAMP OUTPUT Ckt Short to Battery, but there are several other possible causes as well, such as ;

Engine Control Module (ECM)
EVAP system hose leaking
Damaged VCT phaser
Fuel injectors harness is open or shorted

P3374 code for all cars

You can view according P3374 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+P3374 Ac Acedes-magna

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

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