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Old 03-17-2016, 01:05 PM   #1
Scooby Newbie
Member#: 430689
Join Date: Sep 2015
Default Fuel issues: P0453, car won't take fuel, smells of gas, hard starting

Hey Everyone,

I own a 99 USDM 2.2/5mt Impreza Wagon. I've been fixing it up slowly but these fuel related problems have always eluded me. Ever since the beginning of my ownership, I've experienced the following issues:

- Strong gas smell inside and outside the car on warm days
- Hard starting on the first start after filling up the tank
- Rough idle for a little while after filling up the tank
- Loss of power / hesitation when warming up
- Rush of air when removing the gas cap

- After replacing the rusty (but intact) fuel filler neck with a brand new OEM one, the pump now clicks off unless I put the gas in veeerrrryy slloowwwwlyyy. It didn't fix any of my existing problems. The P0453 showed up several months afterward.

- I've also replaced the fuel filter. Again, absolutely no difference.

- Replaced the fuel filler cap with a new one, no difference.

- Tried blowing compressed air through the filler neck vent lines, also made no difference.

I've skirted around these problems so far and I can still drive the car, but I dread spending 15 minutes filling up every time, and I hate having to tell passengers to roll down the window when there's gas fumes.

My own research has come up inconclusive and I can't afford to just throw money at it replacing parts on the off-chance that they might fix the problem. Does anyone have experience with what could be causing this? Any help would be much appreciated, and if you need more information, feel free to ask.

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Old 05-13-2016, 10:14 PM   #2
Scooby Newbie
Member#: 446137
Join Date: May 2016

99% sure it is your purge control valve. Had the same issue with my 04 outback sport. Change it today, got gas, problem fixed. Took 5 minutes.
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Old 05-14-2016, 09:42 AM   #3
Scooby Newbie
Member#: 443873
Join Date: Apr 2016

P0453 on 2 different 200,000 mile 2002 civics turned off with purge control valve replacements. One broke the charcoal canister it was attached to, but was repaired with 2 part plastic epoxy. I did not have all the other problems that your car shows. Some of those may need more help.
You might be in Maine,, it is very possible that the gas tank is leaking. Get it all "sniffed" for the leaks with an exhaust analyzer. I have had rusted tanks in NY, Also carry brake fluid with you , PS fluid, I have had these lines rust out, also oil pans.
If the tank is bad that might throw the P0453. Good luck!
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