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getting gas and check engine light #280810 Sep 20, 11:52pm Sep 20, 11:52pm
Joined: Jun 2003
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2001 silver Toyota Celica GT
CeliCaRM2001 OP
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2001 Toyota Celica GT
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2001 silver Toyota Celica GT
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getting gas and check engine light
I have a problem with my 2001 gt. almost everytime i get gas my check engine light comes on after i drive my car for a while or a few small trips and then it goes off after a couple trips. has this happened to anybody else? The engine is stock so its not like i changed anything that would make this happen. any ideas would be helpful

Re: getting gas and check engine light [Re: CeliCaRM2001] #280811 Sep 21, 12:20am Sep 21, 12:20am
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Detroit
JBing
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are you turning the gas cap till it clicks?


FS: 19" ADR M Sports
Re: getting gas and check engine light [Re: JBing] #280812 Sep 21, 12:36am Sep 21, 12:36am
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2001 silver Toyota Celica GT
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Originally Posted by JBing
are you turning the gas cap till it clicks?

yes but it still happens anyway

Re: getting gas and check engine light [Re: CeliCaRM2001] #280813 Sep 21, 12:50am Sep 21, 12:50am
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JBing
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maybe theres a bad seal or a loose fill hose or something cause its a pressurized gas tank and the manual says that if the gas cap isnt clicked that the CEL will come on. Id take it to the dealer


FS: 19" ADR M Sports
Re: getting gas and check engine light [Re: JBing] #280814 Sep 21, 5:21am Sep 21, 5:21am
Joined: Sep 2002
Posts: 233
Nj
2000 Black Toyota Celica GT
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devilinacelica
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Nj
try getting a new gas cap...they dont cost much. My friend has an is300 and she was having the same problem...took it to the dealer and all they did was replace the cap and shes fine now.


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Re: getting gas and check engine light [Re: devilinacelica] #280815 Sep 21, 6:52am Sep 21, 6:52am
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celicajonz
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yeah its prob having an evap leak cause the gas cap isn't sealing right when you close the cap...try gas cap, worse case it might be fuel line down to the tank and it might be loose r something...


Originally posted by A_Bathing_Ape:
I hit, what else, oh plus dome.
Re: getting gas and check engine light [Re: celicajonz] #280816 Sep 21, 8:57am Sep 21, 8:57am
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Haulin_A_Doo
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Make sure your code relates to the fuel tank. Take it to Toyo & get the code read.

Re: getting gas and check engine light [Re: Haulin_A_Doo] #280817 Sep 30, 12:02am Sep 30, 12:02am
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2001 silver Toyota Celica GT
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i bought a carchip and my code is p0420. I just dont understand why the cel comes on and goes off by itself.

Re: getting gas and check engine light [Re: CeliCaRM2001] #280818 Sep 30, 12:12am Sep 30, 12:12am
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San Diego
GOLDCELICA
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Originally Posted by CeliCaRM2001

i bought a carchip and my code is p0420. I just dont understand why the cel comes on and goes off by itself.


PO420 Catalyst System Efficiency Below Threshold (Bank1)
- Gas Leakage on exhaust system
- Open or short in heated oxygen sensor circuit
- Heated oxygen sensor
- Three-way catalytic converter

Click Here for engine trouble code


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