Charcoal canister is full of fuel-input needed

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Jun 24, 2012 | 07:02 PM

Jason444

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iTrader: (6)

Joined: Sep 2008

Posts: 268

Likes: 6

From: Tifton GA

Car: '92 Formula, '92 TA, '91 ZR-1

Engine: 350, 305, LT-5

Charcoal canister is full of fuel-input needed

Hi everyone,

On my '92 Trans Am, 305 TPI, I recently pulled a code 45 (rich exh.) when my SES light came on. After changing plugs and o2 sensor, both of which were were black and sooty and finding a disconnected vacuum line, I still had a rough idle after the car ran a few miles. I pulled the charcoal canister this afternoon and it is completely full of fuel. Has anyone else ran into this and if so, how can I correct it? Could it be that the tank vent is bad and fuel is being pushed to the canister? Also, there was a lot of pressure on the gas cap when I loosened it after driving only 15-20 miles. I checked my FSM and also did a TGO search and found nothing exactly like this. Any help is appreciated.

Jason

Jun 24, 2012 | 09:40 PM

akanitro

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iTrader: (2)

Joined: Oct 2011

Posts: 475

Likes: 8

From: Houston, TX

Car: 1989 GTA, 2004 Z06, 2008 Expedition

Engine: L98, LS3, 5.4L

Transmission: 700R4, MN6, Auto

Axle/Gears: 3.23, 3.42, ?

Re: Charcoal canister is full of fuel-input needed

I have a lot of pressure on my tank after I drive for 10 miles or so also. I removed my charcoal canister a long time ago and plugged the tube. With the exception of the tank pressure, I haven't had any other adverse effects on drive-ability though. I am open for any input from other members. Mine is an 89 GTA with the 350 TPI.