1991 crx hf

im throwing a code 12 and i think that also accounts for my rough idling at the moment...I was wondering do i just disconnect the vaccum hoses and removed the valve and just try to clean it or what???any help would be useful..i searched but all i got was ppl asking if they have the egr valve and i know fer sure i have it...TIA

 

You can try to clean it out,
but you are usually better off replacing it..

If it is hanging open,it will definantly cause a rough idle as
is basically like having a huge vacuum leak..

 

if your budget is low like mine i wold go ahed and clean it just use some engine cleaner u can pick it up a a prts store 4 like 3 bucks and spray the hell out of itwhat ever you do don't use a n air blower i learnd from my mistake then aftewr is all good and clean put some lubricant like wd-40 to loosen the valve thats what i did and work GREAT

 

so do i just remove the electrical plug and the #16 hose and then i pull out the EGR valve???thanks alot for the help

 

bump any info on removal???

 

stock HF?

looks like 2 nuts to remove and a couple hoses,

egr dumps engine vacuum when it open. supposed to suck in exhaust to the intake at certain load and rpm conditions. smog reduction is its primary purpose. idling problems abound when egr sticks open[like was said by 88DXCRX]

if bad -> replace.

 

yea stock HF...i saw the two bolts and hose #16 but how do i remove the electrical thing connected cause its looks like its connected to apiece of metal....im going to take a pics of the egr valve and the area so i can know if it needs to be replaced or just cleaned...thanks

 

There is a vacuum line that runs to the EGR. Suck on that line.
It should pull a vacuum and hold it and NOT leak.
If it leaks at all - even a LITTLE bit - then the diaphram in the EGR went bad.
It's rubber material so you can figure that over time it will go bad.

In a working EGR, when vacuum is pulled during normal engine operation the diaphram is sucked up. A metal rod is attached to this diaphram and it is lifted upward during this vacuum. The rod normally blocks the path for the exhaust to recirculate, but when it's lifted then the path is opened. The other end of the rod is detected by the lift sensor on the top of the EGR.

A bad diaphram causes the rod to stay down and the sensor reads no lifting. Then you get an EGR code.

So, my guess is either the rod has gunk all over it and is binding up to the point that it can no longer be lifted upward or the diaphram in the EGR has a hole in it.

 

ok i understand but i just want to know how to remove the electrical wire connection???p

 

its just a standard 3 pin plug, find the tab

 

i tried yanking on the connector and all but it wont budge...Am i removing the correct electrical wire connection???i attached a pic of what im trying to remove and a pic of the egr valve...so any help would do good





Modified by drewcandraw at 5:19 PM 8/24/2005


Modified by drewcandraw at 5:20 PM 8/24/2005

 

bump i cant seem to remove the wire connector...i pulled....

 

those are tricky..
Small tab you have to lift up on with a dental tool..
You will have to tug on the other side of the harness
while you pick up the tab..

 

so i push down on the metal tab holding it in place and pull up from the top to get it loose??ima try that

 

see above..
The part that is mounted,leave it alone..pull up the small tab
in the mounted connector and pull on the other side..

 

oh icic it is tricky...ima try tomorrow since its getting dark in my area and so i can buy a vaccum checker

 

Also,To get the EGR connector off of the bracket,
There is a tab on the underside you have to pick up on
while you slide it off..
The location of the tab is outlined in red..