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P0452 Dodge

P0452 Dodge - EVAP Pressure Switch Stuck Closed

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P0452 Dodge Comments |  Add Comment
Possible causes
- Faulty Evaporative Emission System (EVAP) Pressure sensor
- EVAP purge hose/tube obstruction
- Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted
- Evaporative Emission System (EVAP) Pressure sensor circuit poor electrical connection
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Tech notes
There is a factory service bulletin for the following Dodge models:

2009 Dodge Journey
2007-2009 Dodge Sebring
2007-2009 Dodge Avenger
2007-2009 Dodge Sebring Convertible
2008 Dodge Town & Country
2008 Dodge Voyager
2008 Dodge Caravan

The factory service bulletin recommends reprogramming the Powertrain Control Module (PCM) to repair the problem.
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When is the code detected?
An excessively low voltage from the sensor is sent to Engine Control Module (ECM).
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0452 Dodge Description

The Evaporative Emission System (EVAP) control system pressure sensor detects pressure in the purge line. The sensor output voltage to the Engine Control Module (ECM) increases as pressure increases. The EVAP control system pressure sensor is not used to control the engine system. It is used only for on board diagnosis.

DODGE Technical Service Bulletins for P0452 code
2007 DODGE AVENGER Power Train Details
2008 DODGE AVENGER Power Train Details
2008 DODGE CARAVAN Power Train Details
2009 DODGE AVENGER Power Train Details
2009 DODGE JOURNEY Power Train Details
2007 DODGE AVENGER 100000 Power Train Details
2008 DODGE AVENGER 100000 Power Train Details
2008 DODGE CARAVAN 100000 Power Train Details
2009 DODGE AVENGER 100000 Power Train Details
2009 DODGE JOURNEY 100000 Power Train Details
More Bulletins Help with Technical Service Bulletins What does this mean?
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