P2471 Trouble Code

View P2471 obd/2 error code description and symptoms. P2471 engine photo

Low Speed Fuel Pump Primary Circuit Malfunction The PCM monitors the low speed fuel pump (LFP) primary circuit output from the PCM.
The test fails if: When the LFP circuit is commanded on (grounded), excessive current draw is detected on the LFP circuit; or when the LFP circuit is commanded off, voltage is not detected on the LFP circuit (the PCM expects to detect VPWR voltage coming through the low speed fuel pump relay coil to the LFP circuit). Open or shorted low fuel pump (LFP) circuit Open VPWR to low speed fuel pump relay Damaged low speed fuel pump relay Damaged PCM An open circuit or short to ground can only be detected with the low speed fuel pump.

In most cases, the TCM is integrated into a single housing with the PCM. Nevertheless, the section of the module which controls (automatic) transmission function may be powered up separately. In any case, the TCM is typically powered using switched (only present with the ignition switch in the ON, start, or run position) voltage. This circuit is normally equipped with a fuse, fusible link, and/or a relay. Frequently, the PCM and TCM are powered using the same relay albeit by separate circuits. Access to a reliable vehicle information source will yield necessary details of the TCM power circuit for the specific vehicle in question.

P2471 Error Code Repair Process :

If your vehicle failed a P2471 test and the P2471 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 p2471 exhaust gas temperature sensor circuit high bank 1 sensor 4 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 p2471 exhaust gas temperature sensor circuit high bank 1 sensor 4: 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.

P2471 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 P2471

A common cause of code P2471 is the failure of P2471 Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 4, but there are several other possible causes as well, such as ;

EVAP canister or fuel tank leaks
Damaged camshaft position (CMP) sensor
Faulty Camshaft Position Sensor
Incorrect Positive Crankcase Ventilation (PCV) hose connection

P2471 code for all cars

You can view according P2471 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+P2471 Buick Model B-g

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

About Us | Contact | Privacy