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Runs like crap after fill up.

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Old Oct 13, 2005, 02:19 PM
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I'm going to try all the info all of you gave me. any other thoughts are welcome i don't know what is going on.
Old Oct 13, 2005, 02:20 PM
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Try premium instead of diesel? That does sound weird, but if its only for a short time right when you fill it maybe it's normal?
Old Oct 13, 2005, 02:21 PM
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I've never heard of any such problems with "overfilling," and that includes ANY car, other than you end up with gas pouring down your rear fenders.

Maybe you got the bottom of the tank, where all the water is?
Old Oct 13, 2005, 02:24 PM
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I guess that you run more lean during lower fuel levels and more rich during higher fuel levels..

Thats the way it is with nitro powered R/C
Old Oct 13, 2005, 02:29 PM
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It could be any thing, i thought the EVO takes Diesel it don't that is new to me i thought gas was gas it's cheeper then 93 (thats a good one you got me on that one.)
Old Oct 13, 2005, 02:30 PM
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Originally Posted by Evo#1
I guess that you run more lean during lower fuel levels and more rich during higher fuel levels..

Thats the way it is with nitro powered R/C
Yea it's close Only Smaller.
Old Oct 13, 2005, 02:34 PM
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Yea, I was having the same problem. I'd always pump in more gas to round of my $ total... then my car would idle like crap.

Since gas prices went up I stopped rounding my $ off and I haven't noticed the rough idle since.
Old Oct 13, 2005, 02:35 PM
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if you over fill your car you slug the evaporative system with too many hydrocarbons and it dumps to the intake system (this is a requirement on all cars from like 85 on or so) and that can casue driveability concerns
Old Oct 13, 2005, 02:37 PM
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Well i'm at 1/2 a tank now when i fill up next time i wount fill it to the rim.
Old Oct 13, 2005, 05:58 PM
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universal evom mechanic answer, check for boost leaks!
Old Oct 14, 2005, 06:17 AM
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Originally Posted by EvoVIII_SFL
universal evom mechanic answer, check for boost leaks!
So True.
Old Dec 14, 2005, 07:02 PM
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my 05 will do the same thing after fillup for the first 20 miles or so, only when idling though. i've noticed that when some pumps cut off its actually about to overflow out of the filler tube. i've actually had the gas run out once using a crappy pump that would cut off unless it was held perfectly regardless of the amount of gas in the tank. my srt4 would cut off sometimes well before it was full. i guess the tank in this one is different. i avoid traffic after fillup and don't run into the problem.
Old Dec 14, 2005, 07:08 PM
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Originally Posted by Anarchy99
Anyone notice there EVO running like crap after they fill up the Gas tank?
Why would a car have to run crappy after you put gas?, unless you put the wrong gas there should be no reasons why it runs bad.

However one member of the forum www.evolutionmr.net mentioned that his car ran really bad and he got the CEL after putting gas and not putting the gas cap
Old Dec 14, 2005, 07:46 PM
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Originally Posted by lookEVO
if you over fill your car you slug the evaporative system with too many hydrocarbons and it dumps to the intake system (this is a requirement on all cars from like 85 on or so) and that can casue driveability concerns

charcoal canister gets filled with gas and when the system purges at idle it dumps excessive raw fuel into the intake........or what he said
Old Dec 14, 2005, 08:35 PM
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Originally Posted by Anarchy99
It has done it every time, and i have gone to many places and same thing.
Luis,

Its probably because you are overfilling it.


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