Been having this problem since I bought the car. Check engine light would come on when car reached a 1/4 tank of gas. The dealer changed the part twice. It is evaporative emission control system pressure sensor high input. The car sometimes will not let me put gas in it. The pump clicks like the tank is full and gas shoots out. dealer changed it again and now the light comes on around half a tank. I only have the problem with the gas shooting out when the light is on and there's less than a 1/4 a tank of gas. He said he bought the part brand new, was wondering if it could be something else causing the part to go bad, but the dealer doesn't seem to think so. Has anyone else had the same problem any advice would be appreciated.
Subaru Q&AAsk Your Question
1999 Subaru Impreza Outback Question: Check engine light on code PO453
Answer #1pushrod October 06, 2013, 09:14Master
High input is most likely caused by high pressure which is most likely caused by a faulty vent solenoid/circuit. You said the dealer did the repair, are you talking about a Subaru dealer or an independent?
Replypandabear34, October 08, 2013, 17:37Rookie
independent Dealer.put only deals with and sells subarus.