Evaporative Emission Control System Pressure Sensor High Input
Table of contents
P0453 Possible Causes
- Faulty Evaporative Emission System (EVAP) Pressure sensor
- Evaporative Emission System Pressure sensor harness is open or shorted
- Evaporative Emission System Pressure sensor circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How do I fix code P0453?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
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Cost of diagnosing the P0453 code
The cost of diagnosing the P0453 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0453 Description
The Evaporative Emission System (EVAP) control system pressure sensor detects pressure in the purge line. The sensor output voltage to the Powertrain Control Module (PCM) increases as pressure increases. The EVAP control system pressure sensor is not used to control the engine system. It is used only for onboard diagnosis. The Diagnostic Trouble Code (DTC) will set when an excessively high voltage from the sensor is sent to the Powertrain Control Module.