Egr Valve / code 12

[91accord4door]

alright last night my cars computer through out code number 12 when i tested it,thats and EGR,but my car idles fine,the tach does not go up and down at all?i double checked it and it still throws out code number 12,what should i replace here to get everythnig right again?the check engine light came on once while driving and hasnt come on since,but it does throw out that EGR code so i know there is something wrong,but i dont know what a EGR is?wear do i find it and can i get one from a junkyard if its off a 91 acccord 4door like mine,please help.damn egr i cant even find it.

[Dutchaccord]

the EGR valve lets exhaust gasses pass into the intake manni... dus getting better emissions.....

It's located on top of the intake manni (passenger side)




clean it, it might me clogged....


Stefan

[91accord4door]

so thats the only thing that could be wrong,theres nothing in that black box behing the intake,you know that one with all the vac hoses,theres nothing in there that has to do with the egr?like i said the car runs fine.is it hard to clean out the egr valve?what do i need and how do i do it??

[91accord4door]

Egr Valve Circuit

wear is the egr valve circuit??it might be faulty.it would probably be better to have to do that then to clean the egr valve itself.accorztech you out there?

[accordztech]

here is the egr valve


ur helms have ways of diagnosing it....or whatever book u have...

*circled in pooh brown*

[91accord4door]

damn accordztech you always on top of things,if i just replace that entire EGR valve will that solve my problems?how hard is it to replace does not look that hard,is there anything under the valve cover that has to do with the EGR?thanks accorztech if i can replace that entire egr valve with ease i will,i'll get a decent one from a junkyard.thanks man let me know asap.

[Kabuki]

First I would get a new gasket (they all use the same gasket no matter what model or year), remove and clean the valve. Then reinstall it with a new gasket. You may also need to have you EGR ports cleaned out. But try the valve cleaning first.

[91accord4door]

how would i go about that?is there anything under the valve cover i need to worry about?how long would it take?

[accordztech]

haha im on top of it so u wont bug me lol jk...

i dont know if that will solve your problems, some claim that if u tap the top of that egr thing with a flat head or something a little heavier, the CEL will go away and u will be fine but it will come back.

check all connections, including that red plug on the throttle boddy to see if it is there....but sometimes ur ports can be cloggin up as well...

http://home.comcast.net/~em-engineering/T2T013.pdf

u need adobe reader....but thats differnt if the ports are clogged...

i dont know what ur problem is exactly, i havent really encounterd it...but id rather get the EGR valve NEW....if ur going to replace it

[accordztech]

man stop making double posts now i have to try and merge the shit

[91accord4door]

would a shitty EGR valve make my car accelerate like shit,and would it also make my car decelerate like crap,i am going to get a new EGR valve and gasket with the next couple days.

[accordztech]

i think so, i merged all of ur threads into here.

someone mentioned cleaning, i like to see how that is done...

[91accord4door]

sorry for all the threads did not mean it.

[accordztech]

its ok, next time future reference...if u start something just try and finish it so when people search they know how ur problem turned out from beginning to end...

[91accord4door]

i found that tech2tech link and it looks pretty easy,now if i do that and reaplce the EGR valve and gasket myself it should fix the problem right.i thought i would have to take off the intake manifold i'm glad i dont have to,thanks