Out of fuel with 2 gallons in the tank

[GotBRZ1691]

Originally Posted by Packofcrows

dafuq?

Clog somewhere or something? I drive mine till it has around 3-4 gallons left and pump gas. I always pump 9-10 gallons. Reset ECU?

When you pump and it clicks saying its full, check how much more you can put in as 'overfill' but really slow so that if it starts clicking every 2-3 seconds you know it is full and dont spill fuel. I can always add 3/4 gallon or so even after it clicks off.

My gf messed up some emission control stuff (breather valve? some kind of valve) in her Fiest ST by topping off the tank every time she filled up.

I've notcied that my BRZ clicks off around 3/4 gallon from full as well.

So you need to add this to the math as well, so really, if the tank is 12.5 gallons, and you cant fill the gallon almost, not leaving much to actually fill.

I will typical drive about 20 miles after the gas light clicks on, and my car will never take more than ~11.5-12 gallons

[Koa]

Originally Posted by extrashaky

You're not supposed to do that. From page 76 of the manual:

● Stop filling the tank after the fuel nozzle automatically clicks off
● Do not top off the fuel tank

Originally Posted by billwot

Bad practice!!

ayy guys why is this a bad practice? I'm too lazy to google (I know, ironic considering I'm the sweeper and all) and want some learnin from my ft86 brahs

[ScoobsMcGee]

Originally Posted by Koa

ayy guys why is this a bad practice? I'm too lazy to google (I know, ironic considering I'm the sweeper and all) and want some learnin from my ft86 brahs

Depending upon which website you believe, it is bad to top off for any of the below reasons:

1) Possibility of fuel spillage
2) If the pump is equipped with a vapor recovery mechanism, you could be increasing the cost while the fuel goes back into the station's tank. This could also damage the station's system.
3) All passenger cars produced after 2000 have an onboard refueling vapor recovery system. (https://en.wikipedia.org/wiki/Onboar...vapor_recovery) Apparently topping off can result in raw fuel getting into a system designed for vapor, causing damage to both it and the engine.

Source: http://www.epa.gov/donttopoff/ (EPA website, powered by Geocities)

[Koa]

Originally Posted by ScoobsMcGee

Depending upon which website you believe, it is bad to top off for any of the below reasons:

1) Possibility of fuel spillage
2) If the pump is equipped with a vapor recovery mechanism, you could be increasing the cost while the fuel goes back into the station's tank. This could also damage the station's system.
3) All passenger cars produced after 2000 have an onboard refueling vapor recovery system. (https://en.wikipedia.org/wiki/Onboar...vapor_recovery) Apparently topping off can result in raw fuel getting into a system designed for vapor, causing damage to both it and the engine.

Source: http://www.epa.gov/donttopoff/ (EPA website, powered by Geocities)

I hate the EPA! buuut

#1 is definitely what I've witnessed first hand and second.. #2 also didn't think too far into!

[Scenic Driver]

Originally Posted by GotBRZ1691

My gf messed up some emission control stuff (breather valve? some kind of valve) in her Fiest ST by topping off the tank every time she filled up.

It was most likely the charcoal canister

[xxscaxx]

Do you still have the stock Purge valve solenoid connected or are you running an EBCS?

[GotBRZ1691]

Originally Posted by Scenic Driver

It was most likely the charcoal canister

That or another part of the system @ScoobsMcGee mentioned

Wasn't my car and it was covered under warranty so I didn't look TBH

[FRSBRZGT86FAN]

Originally Posted by extrashaky

You're not supposed to do that. From page 76 of the manual:

● Stop filling the tank after the fuel nozzle automatically clicks off
● Do not top off the fuel tank

Originally Posted by Packofcrows

dafuq?

Clog somewhere or something? I drive mine till it has around 3-4 gallons left and pump gas. I always pump 9-10 gallons. Reset ECU?

When you pump and it clicks saying its full, check how much more you can put in as 'overfill' but really slow so that if it starts clicking every 2-3 seconds you know it is full and dont spill fuel. I can always add 3/4 gallon or so even after it clicks off.

Originally Posted by billwot

Bad practice!!

Originally Posted by Koa

ayy guys why is this a bad practice? I'm too lazy to google (I know, ironic considering I'm the sweeper and all) and want some learnin from my ft86 brahs

Originally Posted by ScoobsMcGee

Depending upon which website you believe, it is bad to top off for any of the below reasons:

1) Possibility of fuel spillage
2) If the pump is equipped with a vapor recovery mechanism, you could be increasing the cost while the fuel goes back into the station's tank. This could also damage the station's system.
3) All passenger cars produced after 2000 have an onboard refueling vapor recovery system. (https://en.wikipedia.org/wiki/Onboar...vapor_recovery) Apparently topping off can result in raw fuel getting into a system designed for vapor, causing damage to both it and the engine.

Source: http://www.epa.gov/donttopoff/ (EPA website, powered by Geocities)

@Packofcrows listen to these guys thats a stupid practice it's called "topping it off" and I'm not sure how you haven't seen signs everywhere near the pump saying not to do that

[King Tut]

Originally Posted by Simisimi

Only other thing to mention is that my Port Injection fuel pump was replaced with a bigger unit when I went from 7 to just over 9PSI boost. Not sure that would be involved but it's in that area. Help!

Ding ding ding. It could be a shorter aftermarket pump so the pickup is not sitting as low in the tank as the OEM pump and thus you no longer have access to that fuel at the bottom of the tank.

[tyrantcf]

^^thats it.

#firstworldproblems

[Packofcrows]

Originally Posted by FRSBRZGT86FAN

@Packofcrows listen to these guys thats a stupid practice it's called "topping it off" and I'm not sure how you haven't seen signs everywhere near the pump saying not to do that

Don't get angry. I was merely wondering if it (op's car) is taking what the tank is capable of or near.

11.5 Gallons as op stated means there's more or less room for 2 gallons. If he was at 2 gallons or so, he shouldn't have gone oog(out of gas). Thus, I was wondering if this problem was unique to him?

For the book, I do not advocate for topping off. Nor for letting your gas tank reach "E." Once I am bit bellow 1/4 I pump.

[FRSBRZGT86FAN]

Originally Posted by Packofcrows

Don't get angry. I was merely wondering if it (op's car) is taking what the tank is capable of or near.

11.5 Gallons as op stated means there's more or less room for 2 gallons. If he was at 2 gallons or so, he shouldn't have gone oog(out of gas). Thus, I was wondering if this problem was unique to him?

For the book, I do not advocate for topping off. Nor for letting your gas tank reach "E." Once I am bit bellow 1/4 I pump.

Not being angry lol

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[Packofcrows]

Originally Posted by FRSBRZGT86FAN

Not being angry lol

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Beer time then. I'll drink one for you.

[FRSBRZGT86FAN]

Originally Posted by Packofcrows

Beer time then. I'll drink one for you.

No biggie lol

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