I was taking fuel injectors off an intake manifold and noticed that the EGR valve regulates exhaust back to the air intake. Since I was curious I ran water through the canal feeding into the intake and only one dripped water the rest were clogged. The intake manifold and fuel injectors were also badly covered with carbon build-up. I think the EGR valves real purpose is to ruin the intake with carbon build-up and make you want a new honda. Have any of you been able to clean that canal because there's no way of getting in there.

 

thats a pretty commonly known problem aactually and a well known labor intesive service as well.
after the 4th gen they learned to put removable plugs in teh ports to clean them out.

 

The 92 and 93s have "removable" plugs right above the ports. If you can find a slide hammer with a screw attachment, you can use that to remove the port plugs, and then clean it out a bit.

I had to take my manifold completely off as I couldn't find a slide hammer. That sucked. It sucked even worse when I found slide hammers in the body part of a local automotive store a month later. ******* hell

 

Is a slider hammer substitute just a strong bolt and hammer. All I have to do is punch it through?

 

just block off the EGR and all the ports leading to it. It wont throw a code according to neidejb

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wakethatassup &raquo;</TD></TR><TR><TD CLASS="quote">Is a slider hammer substitute just a strong bolt and hammer. All I have to do is punch it through?</TD></TR></TABLE>
No, they have to be pulled out.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chiovnidca &raquo;</TD></TR><TR><TD CLASS="quote">
No, they have to be pulled out. </TD></TR></TABLE>

What he said. They come up and out, not down and in.

It's a monumental pain in the ***, no matter what route you take. The slide hammer route is less of a pain in the *** if you can get it to work however :D

 

the 91 also has the removable plugs (mine does)... i believe the 90 does not.

 

so removing these plugs gives you access to what exactly? the fuel injector canals? Could someone post a pic of where these bastards are (preferably on a 4th gen). I'm trying to find the culprit of my shuddering idle.

Thanks!

 

yes, when i removed my intake manifold on my car my intake ports were horribly clogged with carbon build up...id say the ports had been reduced to about the size of a nickel cleaned, then after reinstall blocked off the egr with a blocker plate...

 

It can be done by yourself easy enough


I just pulled mine, split it into two parts and sent it into be steamed and cleaned up. My local machinest did not charge me much at all. Would have cost me more in tools and supplies then it did to have him bath it for me.

Hellish difference when its all cleaned up. Better if you port and pol. it too.

 

here is an adobe format one also I forgot about it also has pics in it with a GREAT steep by steep write up:

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







Thanks to dima (HT member) for the archive post on this with a web page write up with pics

orginal post https://honda-tech.com/zerothread?id=1026563

 

hello u say to block off the egr with the egr plate and then plug all the ports leading to it ???? so since thiers the egr valve and then on the other side theres the egr purge solenoid, do u take that out too and thiers also the vacum and the electrical plugs are u suppose to take those off too or wut??? thanks

 

Do you have the diagram showing how to block of the EGR and all it's ports.

 

I want to know all about this blocking off the egr as well!!! F#@$ing emission BS! The gov't has always got to f#@$ something up for us...

 

if emissions is BS put your face in your exhaust and breathe deeply.

as far as teh EGR it helps increase fuel economy, reduce combustion chamber temperatures thus reducing NOx, and also reduces teh chance of pinging, and allows for a lot mroe timign advance at part throttle. is it messy, yes it can be on a higher milage car, SPECIALLY ones that are not run hard from time to time.