oh, some dude told me this....can someone certify and CLARIFY to this noob...(me)...? hehe, thanks. i really dont know much about what he's talking about but sounds like he knows what he's talking about....thanks for any clarifications...
P1456 (90) EVAP leak - fuel tank system
That's the code you get if you leave the gas cap loose. Check that first.
It really means that your gas tank isn't airtight (like it's supposed to be). It could be a crack in the filler pipe, a loose hose or even a blown gasket at the fuel gauge sender.
If you find a loose gas cap, reset the ECU & see if the CEL comes back. If you don't reset, it'll take a few days before the ECU realizes that it's fixed.
oh, some dude told me this....can someone certify and CLARIFY to this noob...(me)...? hehe, thanks. i really dont know much about what he's talking about but sounds like he knows what he's talking about....thanks for any clarifications...
P1456 (90) EVAP leak - fuel tank system
That's the code you get if you leave the gas cap loose. Check that first.
It really means that your gas tank isn't airtight (like it's supposed to be). It could be a crack in the filler pipe, a loose hose or even a blown gasket at the fuel gauge sender.
If you find a loose gas cap, reset the ECU & see if the CEL comes back. If you don't reset, it'll take a few days before the ECU realizes that it's fixed.
Evaporative emissions, is basically unburned fuel evaporating into the air and is pollution. Unburned HydroCarbons or UHC are very bad for the environment, and automakers even have to do painstaking things to make sure all the fuel that goes into the engine is burned sufficiently, hence emission equipment like exhaust gas recirculation. So you can see why gas just evaporating into thin air out of the tank is bad for biz.
Ok, enough of that.
Now, your car periodically does a vacuum check on the fuel system. If it detects it's not air tight, well then there'a problem, and hence it throws a code. Now, the gas cap is the most common culprit, since it comes on and off so much. Once you 'fix' the problem, you have to reset the ECU to clear the code or just wait for the ECU to run a systems check on the evap system which could be days later, so you just gotta be patient.
well, not really. o-ring could be anywhere, and oil seals can be o-rings or something else. An o-ring is just what it sounds like a round 'ring' an 'o' made of rubber used to seal something. Some oil seals are o-rings, some might be gaskets.
oh, for the other part of what the guy said is that, it's an EVAP code, so it could be a leak in the system anywhere, like the other areas he mentioned, but check the gas cap first since it's the most common to go wrong, easiest to fix and least costly. If it's not that, you won't really know until you reset the ECU [can just clear the code with a scan tool or disconnect the battery] or wait for the ECU to do another systems check, but again, you have to be patient, and give it a few days. If after a few days, the CEL still hasn't gone out, it might be something else.
you're not screwed, just a matter of find out what the problem is... the plot thickens... maybe your rear main seal gave way? where did it leak from?
anyway, oil could have gotten on something else and corroded a line or something, that's just pure speculation on my part...
it could even be unrelated, you know? who knows man... I say, just try the gas cap first, remember always start with the easiest/least expensive fixes first and work your way up. Consider getting a brand new gas cap as well, can't be more than 10 bucks or so.
oh yeah...i noticed that on my gas cap (my 2nd one, lost first), it says "if you dont turn 3 clicks, CEL might turn on). there are times wehre i turn it only 2 clicks. I"ve just turned it tighter now and will reset the ECU in just a minute. how will i know if the gas cap is air tight or not? thanks.
oh yeah...i noticed that on my gas cap (my 2nd one, lost first), it says "if you dont turn 3 clicks, CEL might turn on). there are times wehre i turn it only 2 clicks. I"ve just turned it tighter now and will reset the ECU in just a minute. how will i know if the gas cap is air tight or not? thanks.
That's the problem, you won't know. If tighting it fixes the problem your gas cap is fine. If it doesn't, your gas cap could be bad, or it could be some other problem. Try tightening it first and go from there. Also, before you do that, take it off and inspect it, maybe it might be something obvious like the o-ring is dried out, but if it looks fine, then tighten it and see what happens.
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