P048A
Exhaust Pressure Control Valve A Stuck Closed
Generic code
Auxiliary Emissions Control
Medium severity
Hard repair
Free on OBD DashX
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What P048A means
- Issue with the exhaust gas pressure sensor detected
Possible symptoms
- Check Engine Light/MIL will be on
Possible causes
- Faulty Exhaust Back Pressure Sensor
- Exhaust Back Pressure Sensor harness is open or shorted
- Exhaust Back Pressure Sensor circuit poor electrical connection
Related parts
- Exhaust Back Pressure Sensor: Exhaust Back Pressure sensor detects any kind of back pressure in the exhaust system. Back pressure is the pressure opposite to the exhaust flow resulting in a lower power output. This car's malfunctioning back pressure sensor may lead to higher emissions & lower performance
Possible solutions
- Replacing the exhaust back pressure usually takes care of the problem
Free on OBD DashX
P048A on OBD DashX
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