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Old 01-16-2022, 07:02 PM   #3
97 Pimpreza
Scooby Specialist
Member#: 123693
Join Date: Aug 2006
Chapter/Region: MWSOC
Location: Chicago, IL
2011 WRX Hatch


P0453 Update/possibly solved?:

Checked for a short between the fuel tank pressure sensor and ECU.... None found.

Sprayed out the connectors for the fuel tank pressure sensor with contact cleaner and reattached everything.

Took it for a test drive (about 10 miles) and the code hasn't come back yet. It was reappearing within 5 miles before so possible issue was a bad contact (assuming it doesn't come back again)?

Also checked the EVAP_VP numbers again and was reading 15+ kPA. This should be an issue according to the service manual, but no check engine light or codes are present so I'm really not sure what to believe at this point..... EVAP problems suck.

STILL trying to get pictures loaded up here in case anyone needs to find the tank pressure sensor.
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