i've been looking everywhere! i know you remove the injectors and everything to get to the EGR holes, but how do yuo get the pins out of the hole to clean the ports? and what do you clean them with? a wire brush? anyone ever done this before? its a 5th gen base model.

 

i used a wire brush and some break cleaner... works wonders.

 

i know that there are little holes that you are supposed to clean, and they are blocked by metal plugs. how do you get these out?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ideal &raquo;</TD></TR><TR><TD CLASS="quote">i used a wire brush and some break cleaner... works wonders.</TD></TR></TABLE>

What is cleaning a EGR accomplish?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by integra15 &raquo;</TD></TR><TR><TD CLASS="quote">

What is cleaning a EGR accomplish?</TD></TR></TABLE>
Sometimes you will throw a cel for egr(like me) which means that the exhaust gas recirculation is either disrupted or completely failing. A good way to fix this is either clean the ports or remove it completely(which is what I did).

 

Blocked EGR ports make for high combustion chamber temps in most driving conditions. High temps causes predetination which causes pinging on some cars and on cars with knock sensors it causes the timing to be retarded to compensate. Blocking the EGR comes from the old days when there were no sensors and timing was controled by weights and vacuum.

 

actually blocking egr ports causes a drop in combustion chamber temps....due to the way things are routed the blocked port plays very little into temperature....the bad effect of the blocked tube is much outweighed by the fact that already-hot gases are not heating up the intake manifold and head more than it normally would be....

most people that ever take the head off their motor block the egr passage at the beginning...

 

drill small holes into the plugs. use a slide hammer to remove the plugs. you will use a drill bit to clean the ports because the carbon build up is typically very hard. you can purchase the new plugs from your local honda dealer along with a can of throttle plate cleaner.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mgags7 &raquo;</TD></TR><TR><TD CLASS="quote">actually blocking egr ports causes a drop in combustion chamber temps....due to the way things are routed the blocked port plays very little into temperature....the bad effect of the blocked tube is much outweighed by the fact that already-hot gases are not heating up the intake manifold and head more than it normally would be....

most people that ever take the head off their motor block the egr passage at the beginning...</TD></TR></TABLE> I take it by most people you mean all the MODers on this site that can't make their cars idle or run. The only thing heating up the intake is the temperature of the of the engine bay itself and the fact that it is bolted to the head. The recirculated gasses are cooled by the venturi effect of the more abundant incoming air crossing the much smaller EGR holes. Most people block their EGR because they don't know how to fix it or are too lazy to do so.

 

well i disconected the egr and id dos not ping or do to much diffrence, well it will increse hp just a little. i did it because over time the exhaust gasses will creat carbon in my intek. so my car will run alot cleaner. the only thing is that it will cause th MIL (Malfuntion Indicator Light) light to come on.

 

thanks junbb1.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by amckee &raquo;</TD></TR><TR><TD CLASS="quote"> I take it by most people you mean all the MODers on this site that can't make their cars idle or run. The only thing heating up the intake is the temperature of the of the engine bay itself and the fact that it is bolted to the head. The recirculated gasses are cooled by the venturi effect of the more abundant incoming air crossing the much smaller EGR holes. Most people block their EGR because they don't know how to fix it or are too lazy to do so.</TD></TR></TABLE>

my car idles perfectly with and without the egr working....

there is no dispute to the fact that fresh, cold air will combust more efficiently than reused egr gases....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BB6racer &raquo;</TD></TR><TR><TD CLASS="quote"> they are blocked by metal plugs. how do you get these out?</TD></TR></TABLE>
I use a drill and a slide hammer.

While clogged egr ports are a common problem, making sure they are clogged, and that the rest of the egr system is working properly first can sometimes save time and frustration.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mgags7 &raquo;</TD></TR><TR><TD CLASS="quote">my car idles perfectly with and without the egr working....

</TD></TR></TABLE>
That's because the egr system isnt active at idle.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mgags7 &raquo;</TD></TR><TR><TD CLASS="quote">

there is no dispute to the fact that fresh, cold air will combust more efficiently than reused egr gases....</TD></TR></TABLE>
That is true from a performance standpoint, but not really valid since the egr system isn't active during hard acceleration.

 

I was able to get rid of my EGR insufficient flow CEL w/ some Seafoam . . . I just pulled the valve, filled up both sides with as much Seafoam as would fit (it doesn't take much), let it sit for 3 or 4 minutes, and then started the car up & drive it around to clear it out. It did the whole white-smoke routine like you'd expect from Seafoam, then ran like total *** after I reset the computer. Reset the computer again, and it's been perfect ever since - no more CEL.

So you might try Seafoam before pulling out those freeze plugs in the IM.

 

Since the egr is only running while at partial throttle, there's just no way to see a useable hp increase.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chiovnidca &raquo;</TD></TR><TR><TD CLASS="quote">That's because the egr system isnt active at idle.</TD></TR></TABLE>

i only said that in reply to idiot boy's comment above:
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by amckee &raquo;</TD></TR><TR><TD CLASS="quote"> I take it by most people you mean all the MODers on this site that can't make their cars idle or run.</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chiovnidca &raquo;</TD></TR><TR><TD CLASS="quote">
That is true from a performance standpoint, but not really valid since the egr system isn't active during hard acceleration.</TD></TR></TABLE>

when i speak of efficient combustion.....gas mileage is my concern, not full throttleing....(if thats a word)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Daemione &raquo;</TD></TR><TR><TD CLASS="quote">I was able to get rid of my EGR insufficient flow CEL w/ some Seafoam . . . I just pulled the valve, filled up both sides with as much Seafoam as would fit (it doesn't take much), let it sit for 3 or 4 minutes, and then started the car up & drive it around to clear it out. It did the whole white-smoke routine like you'd expect from Seafoam, then ran like total *** after I reset the computer. Reset the computer again, and it's been perfect ever since - no more CEL.

So you might try Seafoam before pulling out those freeze plugs in the IM.</TD></TR></TABLE>

i would be very careful with that seafoam crap....i have heard plenty of bad stories about it....

 

i had this code whe i first bought my prelude and i ran like 3 cans of that 44k fuel system cleaner in about a month and it cleared the code and cleaned out the ports.... its the only fuel system cleaner that actually works in my experience but its like $20 a can.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mgags7 &raquo;</TD></TR><TR><TD CLASS="quote">i would be very careful with that seafoam crap....i have heard plenty of bad stories about it....</TD></TR></TABLE>
It does what it's supposed to do - break down carbon buildup (for good or for worse . . . .)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mgags7 &raquo;</TD></TR><TR><TD CLASS="quote">i only said that in reply to idiot boy's comment above:


when i speak of efficient combustion.....gas mileage is my concern, not full throttleing....(if thats a word)

...</TD></TR></TABLE>The reburning of exhaust gasses will be seen by the O2 sensor as a rich mixture and it will lean it out to compensate.

 

seafoam is trusted!

 

Can I clean out my EGR ports by removing the Intake Manifold? Stock F22.