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  #1 (permalink)  
Old 04 May 2011, 06:36 pm
Shailesh Randeria
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Default Code Error Honda Accrod 2000

I have received an Engin Light. On chekcing with auto zone found the
error code to be P 1456.

Seems to be Problem with gas cap. What kind of repalcement Gas cap I
should be buying.

Any suggestion??????





Sam
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  #2 (permalink)  
Old 04 May 2011, 07:06 pm
Seth
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Default Re: Code Error Honda Accrod 2000


"Shailesh Randeria" <shailesh.randeria@gmail.com> wrote in message
news:f05153d1-bc9a-40e2-afd7-d95a2220ca4d@m10g2000yqd.googlegroups.com...
> I have received an Engin Light. On chekcing with auto zone found the
> error code to be P 1456.
>
> Seems to be Problem with gas cap. What kind of repalcement Gas cap I
> should be buying.


Either buy one from the dealer or buy one from Autozone where they were kind
enough to read the code for free.


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  #3 (permalink)  
Old 04 May 2011, 07:18 pm
Tegger
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Default Re: Code Error Honda Accrod 2000

Shailesh Randeria <shailesh.randeria@gmail.com> wrote in news:f05153d1-
bc9a-40e2-afd7-d95a2220ca4d@m10g2000...oglegroups.com:

> I have received an Engin Light. On chekcing with auto zone found the
> error code to be P 1456.
>
> Seems to be Problem with gas cap.




And how do you know that?



> What kind of repalcement Gas cap I
> should be buying.




It's possible--but unlikely--that the gas cap is to blame. Check the rubber
seal on the cap. Is it free of tears and burrs? Then the gas cap is likely
fine.



>
> Any suggestion??????
>
>



Sorry, but you'll need to inspect (correctly) all the solenoids that
control your EVAP system. These are under the car, at the rear near the gas
tank. So situated, they are horribly susceptible to corrosion. Do you know
what the word "corrosion" means? Apparently Honda didn't; they seem to
think everybody lives in Torrance.

I have a number of Honda docs here:
<http://www.tegger.com/hondafaq/misc/evap-diag/>
that have to do with EVAP diagnosis and cure.

My advice? If you do not have an emissions test you'll need to pass, just
live with the problem. EVAP errors do no harm whatsoever to the car, but
can do lots to your wallet.

But if you like gambling, you can change the cap anyway (with new OEM) and
hope for the best.

Good luck.


--
Tegger
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  #4 (permalink)  
Old 04 May 2011, 08:04 pm
jim beam
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Posts: n/a
Default Re: Code Error Honda Accrod 2000

On 05/04/2011 04:36 PM, Shailesh Randeria wrote:
> I have received an Engin Light. On chekcing with auto zone found the
> error code to be P 1456.
>
> Seems to be Problem with gas cap. What kind of repalcement Gas cap I
> should be buying.
>
> Any suggestion??????
>
>
>
>
>
> Sam


try the new cap - they're not very expensive. and when you're
tightening it, press in slightly - it helps raise the torque a little
before it clicks and that helps it seal.


--
nomina rutrum rutrum
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  #5 (permalink)  
Old 04 May 2011, 09:20 pm
jim beam
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Posts: n/a
Default Re: Code Error Honda Accrod 2000

On 05/04/2011 05:18 PM, Tegger wrote:
> Shailesh Randeria<shailesh.randeria@gmail.com> wrote in news:f05153d1-
> bc9a-40e2-afd7-d95a2220ca4d@m10g2000...oglegroups.com:
>
>> I have received an Engin Light. On chekcing with auto zone found the
>> error code to be P 1456.
>>
>> Seems to be Problem with gas cap.

>
>
>
> And how do you know that?
>
>
>
>> What kind of repalcement Gas cap I
>> should be buying.

>
>
>
> It's possible--but unlikely--that the gas cap is to blame. Check the rubber
> seal on the cap. Is it free of tears and burrs? Then the gas cap is likely
> fine.
>
>
>
>>
>> Any suggestion??????
>>
>>

>
>
> Sorry, but you'll need to inspect (correctly) all the solenoids that
> control your EVAP system. These are under the car, at the rear near the gas
> tank. So situated, they are horribly susceptible to corrosion. Do you know
> what the word "corrosion" means? Apparently Honda didn't; they seem to
> think everybody lives in Torrance.
>
> I have a number of Honda docs here:
> <http://www.tegger.com/hondafaq/misc/evap-diag/>
> that have to do with EVAP diagnosis and cure.
>
> My advice? If you do not have an emissions test you'll need to pass, just
> live with the problem. EVAP errors do no harm whatsoever to the car, but
> can do lots to your wallet.
>
> But if you like gambling, you can change the cap anyway (with new OEM) and
> hope for the best.
>
> Good luck.
>
>


well, replacing the solenoids as you've advised people to do in the
past, is not a gamble - it's a waste of money.

the problem is the gas cap, and i have this problem on my own accord.
especially in warmer weather when there's more expansion, the tank vents
and loses pressure. that is registered by the sensor and a code is set.
if you get a new cap, or just vaseline and push harder on the old one
so the thing seals properly before it clicks, the tank seals, holds
pressure, and there's no code.

just to illustrate the point, after my own initial code light issues, i
started making sure i was tightening the cap properly, and it has stayed
off. i then loan my car to a friend, and he calls me a week later
saying the code light was on. i tell him about the cap, he starts
tightening it properly, and the code clears after the requisite number
of drive cycles.

that's $120 you don't need to lash out on a new purge solenoid.


--
nomina rutrum rutrum
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  #6 (permalink)  
Old 05 May 2011, 11:54 am
Tegger
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Posts: n/a
Default Re: Code Error Honda Accrod 2000

jim beam <me@privacy.net> wrote in
news:492dnR1UGKntlF_QnZ2dnUVZ_qKdnZ2d@speakeasy.ne t:


>>
>>

>
> well, replacing the solenoids as you've advised people to do in the
> past, is not a gamble - it's a waste of money.




I /never/ advise replacing the solenoids. I advise the performing of proper
diagnostics prior to spending money on parts.



>
> the problem is the gas cap, and i have this problem on my own accord.
> especially in warmer weather when there's more expansion, the tank
> vents and loses pressure. that is registered by the sensor and a code
> is set.
> if you get a new cap, or just vaseline and push harder on the old
> one
> so the thing seals properly before it clicks, the tank seals, holds
> pressure, and there's no code.




Not everybody lives in the southwest, you know.

In the northeast (where the OP apparently resides) Honda has had very
significant and serious problems with corrosion on the EVAP canister and
its solenoids. The problems have been bad enough to result in a large
number of TSBs and SN articles on what causes the problems and how to
troubleshoot them. I've posted many of them on my site.

It's true that an insufficiently-tightened gas cap can cause certain EVAP
errors, so the OP would be wise to both inspect the cap's seal (as I
suggested), and to ensure that it be tightened at /least/ six or eight
clicks each time it is put back. It is also unwise to use aftermarket gas
caps, as they are not as well-made as OEM caps, and cause EVAP codes much
more frequently than OEM caps.

--
Tegger
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  #7 (permalink)  
Old 05 May 2011, 12:42 pm
jim beam
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Posts: n/a
Default Re: Code Error Honda Accrod 2000

On 05/05/2011 09:54 AM, Tegger wrote:
> jim beam<me@privacy.net> wrote in
> news:492dnR1UGKntlF_QnZ2dnUVZ_qKdnZ2d@speakeasy.ne t:
>
>
>>>
>>>

>>
>> well, replacing the solenoids as you've advised people to do in the
>> past, is not a gamble - it's a waste of money.

>
>
>
> I /never/ advise replacing the solenoids. I advise the performing of proper
> diagnostics prior to spending money on parts.


ahem. do you care to re-word that?


>
>
>
>>
>> the problem is the gas cap, and i have this problem on my own accord.
>> especially in warmer weather when there's more expansion, the tank
>> vents and loses pressure. that is registered by the sensor and a code
>> is set.
>> if you get a new cap, or just vaseline and push harder on the old
>> one
>> so the thing seals properly before it clicks, the tank seals, holds
>> pressure, and there's no code.

>
>
>
> Not everybody lives in the southwest, you know.
>
> In the northeast (where the OP apparently resides) Honda has had very
> significant and serious problems with corrosion on the EVAP canister and
> its solenoids. The problems have been bad enough to result in a large
> number of TSBs and SN articles on what causes the problems and how to
> troubleshoot them. I've posted many of them on my site.


the canister is polyethylene - i don't think that even in canadia,
corrosion has ever been recorded as a problem with that material. the
solenoids, well, if they are corroding, they're mysteriously passing the
vacuum meter test.


>
> It's true that an insufficiently-tightened gas cap can cause certain EVAP
> errors, so the OP would be wise to both inspect the cap's seal (as I
> suggested), and to ensure that it be tightened at /least/ six or eight
> clicks each time it is put back. It is also unwise to use aftermarket gas
> caps, as they are not as well-made as OEM caps, and cause EVAP codes much
> more frequently than OEM caps.


you're not speaking from experience dude. the $10 stant 10834 gas gap i
got to replace the oem on my accord is every bit as good as oem, and
better in that it has an improved seal gasket design. and the number of
clicks isn't going to make any difference if the seal's not seating
properly (ignoring of course that you're pulling those numbers out of
thin air - the manual says three).

the telltale is that if you go to test after the code has been set, the
gas cap will be "loose", i.e. that even though it seemed tight after you
filled the tank, it'll now almost fall off in your hand.

the unfortunate shop diagnostic process that would include a pressure
test of the cap off the tank, gives a false conclusion because the cap
always works on the testing machine. this is probably why honda
concluded there's a problem with the solenoids since it seems that the
cap checks ok. just like honda think there's a problem with civic
thermostats when in fact it's the transmission selector switches, and
you get a fuel injector code when the main relay's not working.

when i had mine smog tested, the last item on the check list is the gas
cap. it tested fine and the car passed smog. driving home from the
smog station however, a code set because the tester only put the cap
back on with "weak" torque so it was loose and then vented again.

the solution is to get a new (aftermarket) cap, then make double sure by
running a little vaseline around the seal, and push a little when
screwing back on. end of problem.


--
nomina rutrum rutrum
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  #8 (permalink)  
Old 05 May 2011, 02:03 pm
Tegger
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Posts: n/a
Default Re: Code Error Honda Accrod 2000

jim beam <me@privacy.net> wrote in
news:LoGdndrzrPkcfF_QnZ2dnUVZ_hednZ2d@speakeasy.ne t:


>
> the canister is polyethylene - i don't think that even in canadia,
> corrosion has ever been recorded as a problem with that material. the
> solenoids, well, if they are corroding, they're mysteriously passing
> the vacuum meter test.




You doubt Honda's own very extensive documentation on the corrosion thing?




--
Tegger
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  #9 (permalink)  
Old 05 May 2011, 03:34 pm
jim beam
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Posts: n/a
Default Re: Code Error Honda Accrod 2000

On 05/05/2011 12:03 PM, Tegger wrote:
> jim beam<me@privacy.net> wrote in
> news:LoGdndrzrPkcfF_QnZ2dnUVZ_hednZ2d@speakeasy.ne t:
>
>
>>
>> the canister is polyethylene - i don't think that even in canadia,
>> corrosion has ever been recorded as a problem with that material. the
>> solenoids, well, if they are corroding, they're mysteriously passing
>> the vacuum meter test.

>
>
>
> You doubt Honda's own very extensive documentation on the corrosion thing?
>



do you own one of these vehicles and have you done the solenoid vacuum
test and found it negative, even though the error code keeps setting?

have you ever had a main relay fault be registered as "code 16 -
injector fault"? have you ever seen honda issue a service bulletin or
shop manual diagnostic update to correct this error?

have you read honda service bulletin 97-025 blaming the thermostat for
slow/no lockup clutch operation on automatics? well, it's wrong. the
real cause of the fault is that the transmission selector switch grease
gums up [sub-spec usa supply - not present on japan models apparently]
and the ecu doesn't get the required "d4" signal to energize the lockup
solenoid. this is hard to diagnose because the switch sits above the
catalytic converter, so when you test drive to witness the problem, then
come back to the shop to test, the heat from the converter has warmed up
the switch grease and it tests fine. cold, and with cold air rushing
underneath the car, the thing stays cold and is locked solid.

http://www.flickr.com/photos/38636024@N00/4580950961
http://www.flickr.com/photos/38636024@N00/4580950951
http://www.flickr.com/photos/38636024@N00/4581625436

so, getting back to your question, yes i do doubt honda's service
bulletin. [note: the words "very extensive documentation", would in any
normal engineering parlance mean "fault examination and diagnosis".
that is /not/ what they've provided.] this service bulletin, just like
most of the others, is written by a workshop tech here in the u.s., with
a view to getting the thing out of the shop and out of warranty, not
hondas design engineers in japan figuring out what the design/spec/q.c.
issue was so they can correct it in future manufacturing. and just like
service techs for many other situations and many other types of machine,
service training is not always the best analytical training so
misdiagnosis and mistakes result.


--
nomina rutrum rutrum
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  #10 (permalink)  
Old 05 May 2011, 07:42 pm
Tegger
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Posts: n/a
Default Re: Code Error Honda Accrod 2000

jim beam <me@privacy.net> wrote in
news:tf-dnSlt5dl9lF7QnZ2dnUVZ_hqdnZ2d@speakeasy.net:


>
> so, getting back to your question, yes i do doubt honda's service
> bulletin. [note: the words "very extensive documentation", would in
> any normal engineering parlance mean "fault examination and
> diagnosis". that is /not/ what they've provided.] this service
> bulletin, just like most of the others, is written by a workshop tech
> here in the u.s., with a view to getting the thing out of the shop and
> out of warranty, not hondas design engineers in japan figuring out
> what the design/spec/q.c. issue was so they can correct it in future
> manufacturing. and just like service techs for many other situations
> and many other types of machine, service training is not always the
> best analytical training so misdiagnosis and mistakes result.
>
>



Maybe you should apply for a job with American Honda, so you can fix all
their mistakes for them.

--
Tegger
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