Fuel Tank Pressure Sensor Intermittent
Table of contents
P0454 PONTIAC Possible Causes
- Faulty Fuel Tank Pressure (FTP) Sensor
- Fuel Tank Pressure Sensor harness is open or shorted
- Fuel Tank Pressure Sensor circuit poor electrical connection
How do I fix code P0454 PONTIAC?
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.
Cost of diagnosing the P0454 PONTIAC code
The cost of diagnosing the P0454 PONTIAC 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)
P0454 PONTIAC Description
The Evaporative Emission (EVAP) system is used to store fuel vapors in order to reduce the amount of fuel vapors into the atmosphere. The Fuel Tank Pressure (FTP) sensor is only used for EVAP system diagnostics. The FTP sensor is a transducer that varies resistance according to changes in the fuel tank pressure. The Powertrain Control Module (PCM) monitors the FTP sensor signal in order to detect vacuum decay and excess vacuum during the EVAP system diagnostic test. The Powertrain Control Module supplies a 5-volt reference and a low reference circuit to the FTP sensor. The Diagnostic Trouble Code (DTC) will set when an intermittent voltage signal from the EVAP control system pressure sensor is sent to the Powertrain Control Module.