P3457 Austin 7 OBD Code

OBD/2 P3457 error code description and symptoms.

Brake Switch Circuit Input Malfunction Indicates PCM did not receive a brake pedal position (BPP) input. Open or short in BPP circuit Open or short in stoplamp circuits Damaged PCM Malfunction in module(s) connected to BPP circuit. (Rear Electronic Module [REM] Windstar and LS6/LS8 or Lighting Control Module (LCM) Continental and Town Car. Damaged brake switch Misadjusted brake switch Check for proper function of stoplamps.

As the engine heats up and combustion becomes easier and more complete, the PCM will command the idling control valve to increase the amount of air entering the engine to suit the changing conditions. However, when the load on the engine changes, say, when some electrical consumers or other systems are either turned on or off, the PCM adapts the signal voltage to the idle control valve to ensure that the idling speed remains stable, and at the RPM specified by the manufacturer.

P3457 Austin 7 Error Code Repair Process :

If your p3457 cylinder 8 deactivation/intake valve control circuit/open check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P3457 and engine control unit are in charge of monitoring a bunch of different p3457 cylinder 8 deactivation/intake valve control circuit/open, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Austin 7 P3457 OBD2 Code

A common cause of code P3457 is the failure of P3457 Cylinder 8 Deactivation/Intake Valve Control Circuit/Open, but there are several other possible causes as well, such as ;

Failures of clutch motion/travel sensors.
Faulty front heated oxygen sensor
Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection
Exhaust gas leaks

P3457 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.

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P3457 Austin 7 OBD Code

P3457 Austin 7 Error Code Repair Process :

Common Causes of Austin 7 P3457 OBD2 Code

P3457 code for other Austin cars