I have this error code on my 2002 TJ sport 6 cylinder.
P0456 (M) Evap Leak Monitor Small Leak Detected Leak has been detected
in the evaporative system.

What does this mean, and is there a quick way to fix it or find the
leak? Where would I start?

 

No kidding, it's likely just your gas cap is loose, or leaking air if you
have installed an aftermarket locking gas cap. If the computer notices any
air leak in the fuel system during self-tests, it'll set that error code.

Jerry
--
Jerry Bransford
PP-ASEL N6TAY
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Snowboardripper" <snowboardripper@hotmail.com> wrote in message
news:72ce17be.0409211947.5fd854d2@posting.google.c om...
>I have this error code on my 2002 TJ sport 6 cylinder.
> P0456 (M) Evap Leak Monitor Small Leak Detected Leak has been detected
> in the evaporative system.
>
> What does this mean, and is there a quick way to fix it or find the
> leak? Where would I start?

 

No kidding, it's likely just your gas cap is loose, or leaking air if you
have installed an aftermarket locking gas cap. If the computer notices any
air leak in the fuel system during self-tests, it'll set that error code.

Jerry
--
Jerry Bransford
PP-ASEL N6TAY
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Snowboardripper" <snowboardripper@hotmail.com> wrote in message
news:72ce17be.0409211947.5fd854d2@posting.google.c om...
>I have this error code on my 2002 TJ sport 6 cylinder.
> P0456 (M) Evap Leak Monitor Small Leak Detected Leak has been detected
> in the evaporative system.
>
> What does this mean, and is there a quick way to fix it or find the
> leak? Where would I start?

 

No kidding, it's likely just your gas cap is loose, or leaking air if you
have installed an aftermarket locking gas cap. If the computer notices any
air leak in the fuel system during self-tests, it'll set that error code.

Jerry
--
Jerry Bransford
PP-ASEL N6TAY
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Snowboardripper" <snowboardripper@hotmail.com> wrote in message
news:72ce17be.0409211947.5fd854d2@posting.google.c om...
>I have this error code on my 2002 TJ sport 6 cylinder.
> P0456 (M) Evap Leak Monitor Small Leak Detected Leak has been detected
> in the evaporative system.
>
> What does this mean, and is there a quick way to fix it or find the
> leak? Where would I start?

 

I hope Jerry is right.
Other than that I hope you are still under warranty.
My 01TJ when fairly new, had the same problem. Brought it in
to the dealer numerous time only to have the check engine light
come back on soon after (next day) The dealer finally
kept the piece of junk for a week and apparently replaced the gas tank.
I asked them numerous times for a itemized list (copy of work order) of
the things they did. which I never got.
Why do I think, they really just overridden the fault code
in the computer.

Jerry Bransford wrote:

> No kidding, it's likely just your gas cap is loose, or leaking air if you
> have installed an aftermarket locking gas cap. If the computer notices any
> air leak in the fuel system during self-tests, it'll set that error code.
>
> Jerry
> --
> Jerry Bransford
> PP-ASEL N6TAY
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
> "Snowboardripper" <snowboardripper@hotmail.com> wrote in message
> news:72ce17be.0409211947.5fd854d2@posting.google.c om...
>
>>I have this error code on my 2002 TJ sport 6 cylinder.
>>P0456 (M) Evap Leak Monitor Small Leak Detected Leak has been detected
>>in the evaporative system.
>>
>>What does this mean, and is there a quick way to fix it or find the
>>leak? Where would I start?
>
>
>

 

I hope Jerry is right.
Other than that I hope you are still under warranty.
My 01TJ when fairly new, had the same problem. Brought it in
to the dealer numerous time only to have the check engine light
come back on soon after (next day) The dealer finally
kept the piece of junk for a week and apparently replaced the gas tank.
I asked them numerous times for a itemized list (copy of work order) of
the things they did. which I never got.
Why do I think, they really just overridden the fault code
in the computer.

Jerry Bransford wrote:

> No kidding, it's likely just your gas cap is loose, or leaking air if you
> have installed an aftermarket locking gas cap. If the computer notices any
> air leak in the fuel system during self-tests, it'll set that error code.
>
> Jerry
> --
> Jerry Bransford
> PP-ASEL N6TAY
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
> "Snowboardripper" <snowboardripper@hotmail.com> wrote in message
> news:72ce17be.0409211947.5fd854d2@posting.google.c om...
>
>>I have this error code on my 2002 TJ sport 6 cylinder.
>>P0456 (M) Evap Leak Monitor Small Leak Detected Leak has been detected
>>in the evaporative system.
>>
>>What does this mean, and is there a quick way to fix it or find the
>>leak? Where would I start?
>
>
>

 

I hope Jerry is right.
Other than that I hope you are still under warranty.
My 01TJ when fairly new, had the same problem. Brought it in
to the dealer numerous time only to have the check engine light
come back on soon after (next day) The dealer finally
kept the piece of junk for a week and apparently replaced the gas tank.
I asked them numerous times for a itemized list (copy of work order) of
the things they did. which I never got.
Why do I think, they really just overridden the fault code
in the computer.

Jerry Bransford wrote:

> No kidding, it's likely just your gas cap is loose, or leaking air if you
> have installed an aftermarket locking gas cap. If the computer notices any
> air leak in the fuel system during self-tests, it'll set that error code.
>
> Jerry
> --
> Jerry Bransford
> PP-ASEL N6TAY
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
> "Snowboardripper" <snowboardripper@hotmail.com> wrote in message
> news:72ce17be.0409211947.5fd854d2@posting.google.c om...
>
>>I have this error code on my 2002 TJ sport 6 cylinder.
>>P0456 (M) Evap Leak Monitor Small Leak Detected Leak has been detected
>>in the evaporative system.
>>
>>What does this mean, and is there a quick way to fix it or find the
>>leak? Where would I start?
>
>
>

 

Maybe clean the mud out of the gas cap and see what happens?

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Snowboardripper wrote:
>
> I have this error code on my 2002 TJ sport 6 cylinder.
> P0456 (M) Evap Leak Monitor Small Leak Detected Leak has been detected
> in the evaporative system.
>
> What does this mean, and is there a quick way to fix it or find the
> leak? Where would I start?

 

Maybe clean the mud out of the gas cap and see what happens?

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Snowboardripper wrote:
>
> I have this error code on my 2002 TJ sport 6 cylinder.
> P0456 (M) Evap Leak Monitor Small Leak Detected Leak has been detected
> in the evaporative system.
>
> What does this mean, and is there a quick way to fix it or find the
> leak? Where would I start?

 

Maybe clean the mud out of the gas cap and see what happens?

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Snowboardripper wrote:
>
> I have this error code on my 2002 TJ sport 6 cylinder.
> P0456 (M) Evap Leak Monitor Small Leak Detected Leak has been detected
> in the evaporative system.
>
> What does this mean, and is there a quick way to fix it or find the
> leak? Where would I start?