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niedejb · 03-13-2003, 02:47 PM

Well after 75 miles on the new engine (with stock ECU), I've had no check engine light from the EGR block I did before I installed the engine.

Heres how I did it.

1st the EGR system is all supplied by cyl #4

You can see in this pic how it the gases get to the EGR valve.

The valve itself (you'll need a new gasket after pulling this off).

Once open the valve feeds all cyl with exhaust gas.

To block the system I used a piece of old head gasket but anything thin and metal will work (aluminum can cut up would also work). You can see the gasket plate is a two piece metal gasket.

To seal everything up, I put Permatex Copper Seal.

You can see it here on the opening that seals the blocking plate to the upper portion of the EGR dist system.

Here it is installed.

You can see since this is downstream from all the EGR valves and solenoids, the system has no way of knowing the exhaust gases arent making it into the engine.

Enjoy.

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GZERO · 03-13-2003, 02:56 PM

Really Good Post

I have a question, does the EGR gases still get to flow on the intake on the left part? meaning, does it still heats the IM? or did you block that on the head?

niedejb · 03-13-2003, 03:05 PM

It still gets to the valve.

I'm more worried about crap getting into my brand new engine than the manifold heat.

If you block it at the head the gases wont lift the valve (I think) and youll get a CEL. I havnt tried that, but my feeling is it wont work.

The ECU can detect the solenoid not working and the actual lift on the EGR valve.

Vac ought to raise the valve, but all these EGR CEL posts say that cleaning these ports solved the problems. If thats the case, the vacuum alone couldnt pic up the valve all the way. Either that or the build up inside the valve kept it from raising all the way.

patastinky · 03-13-2003, 03:06 PM

why would one do this? disabling egr what are the advantage of doing so ?

niedejb · 03-13-2003, 03:10 PM

Quote:

Really Good Post

I have a question, does the EGR gases still get to flow on the intake on the left part? meaning, does it still heats the IM? or did you block that on the head?

Edit:

BTW, removing the entire manifold would be required for blocking where you are describing (pain in the ass).

The way I posted can all be done with the intake manifold in place.

niedejb · 03-13-2003, 03:15 PM

Quote:

why would one do this? disabling egr what are the advantage of doing so ?

Three reasons.

1) These passages clog over time and could cause a CEL.

2) These gases dilute your intake charge and rob you of power (minimal but still a loss)

3) Tuning air to fuel ratios would be a pain in the ass if this valve is diluting some of the time and not the others. The exaust gasses can increase/decrease the likelyhood of detonation when boosting.

accordfreak · 03-13-2003, 03:43 PM

Can't you block off all the holes and not throw a cell since you're going to be using the AEM system?

i need to block off everything and take out that ugly egr valve to use my fuel setup.... i've unplugged the whole EGR system... so far no cell with the OBD I

niedejb · 03-13-2003, 03:45 PM

Quote:

Can't you block off all the holes and not throw a cell since you're going to be using the AEM system?

Yes.

I'm running the stock ECU for the break in and didnt want the contamination until I get the EMS in and tuned.

carolinaACCORD · 03-13-2003, 03:52 PM

Excellent post!

i wonder how hard it would be to make a heat sink type setup to bracket on to the
egr valve to dissipate the heat?

JimBlake · 03-14-2003, 04:46 AM

Quote:

... i wonder how hard it would be to make a heat sink type setup to bracket on to the egr valve to dissipate the heat?

I don't think it would be necessary. Exhaust has to keep flowing to supply heat to the manilold. Since the exhaust is blocked, it cools down to match the manifold temperature anyway.

You'd be better off spending time & effort on something that looks more like a charge cooler. Or

a CAI.

carolinaACCORD · 03-14-2003, 06:06 AM

Quote:

I don't think it would be necessary. Exhaust has to keep flowing to supply heat to the manilold. Since the exhaust is blocked, it cools down to match the manifold temperature anyway.

You'd be better off spending time & effort on something that looks more like a charge cooler. Or

a CAI.

good point, i guess there would be a compromise between the temperatures.
so it wouldnt be that big of a factor.

JDM_CD7 · 03-16-2003, 01:05 AM

Good Post..... may have to check that with my engine before i do the smog

iam7head · 03-16-2003, 03:37 AM

neidejb, what happen to your old motor? still gonna boost it?

niedejb · 03-16-2003, 04:48 AM

Quote:

neidejb, what happen to your old motor? still gonna boost it?

Dont understand the question....the built engine is in a undergoing the 500 mile break in before boosting. The old engine is sitting on my work bench in the garage. Thinking about building it for my hatchback.

melissah · 12-12-2007, 02:08 PM

Hey I bought a 91 Accord SE with a blown engine. I dropped a 94 F22B2 in it with the head from the 91. Here are some of the problems I'm having. Engine light is on, S light flashes, wont shift into overdrive, engine revs up & down. Codes 12 & 17 flash meaning EGR & speed sensor problems. I've changed the Speed sensor, still same problem. I believe my problems are electrical but I'm not sure.

Question is where do I start? Do I change the ECU to a 94? Could it be the TCU? I've put way more money into this than I wanted already, when should I stop?

TouringAccord · 12-13-2007, 05:18 AM

that is a question that is completely unrelated to this thread.

Please create a new thread to discuss your problem(s). Thanks

JDM_CD7 · 12-13-2007, 09:51 AM

Beautiful write up

Power Rev Racing · 12-13-2007, 07:56 PM

Nice write up !!!

Mafia_Insurance · 02-14-2009, 05:58 PM

Can you rehost the pictures? I only see red x's

bdmlilburn · 04-28-2009, 07:19 AM

can i block of the egr on my 96 accord ex f22b1?

obdll and i will need to get emissions this summer. i can always unclog it for emissions

the pics are broken links but im guessing all you gotta do a fab a block off plate and use some sealer to seal it down over where the egr valve would be. would it be best to just make a block off plate and put the egr vavle back on with the plate underneath it?

after doing this what do you do with the vacuum hoses going to the egr valve?

d1n0 · 05-21-2009, 09:46 AM

help, why is it i cant see the pictures?

5hift_shop · 05-29-2009, 06:16 AM

great post, thanks

bsivoljr · 06-22-2009, 05:45 PM

This would create a mean pressure I would think in the head. And also make your engine so dirty and contaminated inside. This is cheap. What you should really be doing is installing an oil catch can to catch the contaminants instead of blocking them and forcing it to stay in the head. Dumb IMO

GhostAccord · 06-22-2009, 06:27 PM

This wouldn't cause any pressure difference in the head. The exhaust gas recirculation system works off vacuum from the intake. As the EGR valve opens, the vacuum created by the intake manifold pulls exhaust gases into the intake system. Through a small opening in the left exhaust port on the #4 cylinder.

An oil catch can is used in line with the PCV system to catch any oil and carbon from getting into the intake manifold not exhaust gases.

However I still think that this mod will throw an insufficient exhaust gas flow CEL after a while. You may not get the EGR lift CEL but insufficient flow should still be detected.

03-13-2003, 02:56 PM	#2
GZERO Join Date: Sep 2002 Location: Caracas, Venezuela Posts: 1,474	Re: EGR block (niedejb) Really Good Post I have a question, does the EGR gases still get to flow on the intake on the left part? meaning, does it still heats the IM? or did you block that on the head? __________________ Really good exhaust thread "people too weak to follow their own dreams will always find a way to discourage others." Taken from CRXDX http://images.honda-tech.com/set1/smile/emthup.gif http://images.honda-tech.com/set1/smile/emthup.gif "Love is the best disease a human can have" -Me

03-13-2003, 03:05 PM	#3
niedejb Join Date: Feb 2002 Location: Peoria, IL, USA Posts: 1,835	Re: EGR block (GZERO) It still gets to the valve. I'm more worried about crap getting into my brand new engine than the manifold heat. If you block it at the head the gases wont lift the valve (I think) and youll get a CEL. I havnt tried that, but my feeling is it wont work. The ECU can detect the solenoid not working and the actual lift on the EGR valve. Vac ought to raise the valve, but all these EGR CEL posts say that cleaning these ports solved the problems. If thats the case, the vacuum alone couldnt pic up the valve all the way. Either that or the build up inside the valve kept it from raising all the way. __________________ 97 2.2 CL F22B1 253 hp/264 ftlbs One cam...not two http://home.insightbb.com/~niedejb

03-13-2003, 03:43 PM	#7
accordfreak Member Join Date: Oct 2001 Location: nor cal Posts: 1,997	Re: EGR block (niedejb) Can't you block off all the holes and not throw a cell since you're going to be using the AEM system? i need to block off everything and take out that ugly egr valve to use my fuel setup.... i've unplugged the whole EGR system... so far no cell with the OBD I __________________ 1994 Accord Coupe EX 5spd 269 whp/ 281wtq @ 14psi stock engine with boost leak lol and now 0whp / 0wtq @ -1 psi... http://images.honda-tech.com/set1/smile/emsad.gif http://www.honda-tech.com/zerothread?id=814922 the original accordfreak. all others are copies

03-13-2003, 03:52 PM	#9
carolinaACCORD Member Join Date: Aug 2001 Location: Innovate...dont imitate, usa Posts: 1,536	Re: EGR block (niedejb) Excellent post! i wonder how hard it would be to make a heat sink type setup to bracket on to the egr valve to dissipate the heat? __________________ -James 92 Civic HB Torch Red 96 Toyota Tacoma 2WD Viper GTS Blue Metallic

03-16-2003, 01:05 AM	#12
JDM_CD7 Member Join Date: Jul 2002 Location: Behind ur momz,pullin her hair, CA, USA Posts: 2,010	Re: EGR block (carolinaACCORD) Good Post..... may have to check that with my engine before i do the smog __________________ "expletive what you think, i'll still out handle you" <----1995 Accord EX Coupe (CD7) PAYPAL VERIFIED My Vouches: Bigxclumzy,TheBEeGuY,FF-Greg,FF-Sean, FR-MOB: The B33 Gay,DUFFM4N, Shelton, Freaker, 91CrXB16a, 88crxkidsir (Los), donut, and more just can't remember names http://images.honda-tech.com/set1//smile/emcrook.gif

03-16-2003, 03:37 AM	#13
iam7head Senior Member Join Date: Aug 2002 Location: SoCal Posts: 17,208	Re: EGR block (niedejb) neidejb, what happen to your old motor? still gonna boost it? __________________ Honda s2000 Ap1 00' Silverstone(153lb-ft of torqueless wonders) Mazda Miata Mx-5 90' BMWjetblack(116hp of ball-less fury)

12-12-2007, 02:08 PM	#15
melissah Join Date: Dec 2007 Location: McLeansboro, IL, US Posts: 2	Re: EGR block (niedejb) Hey I bought a 91 Accord SE with a blown engine. I dropped a 94 F22B2 in it with the head from the 91. Here are some of the problems I'm having. Engine light is on, S light flashes, wont shift into overdrive, engine revs up & down. Codes 12 & 17 flash meaning EGR & speed sensor problems. I've changed the Speed sensor, still same problem. I believe my problems are electrical but I'm not sure. Question is where do I start? Do I change the ECU to a 94? Could it be the TCU? I've put way more money into this than I wanted already, when should I stop?

12-13-2007, 05:18 AM	#16
TouringAccord H-T Order of Merit Join Date: Aug 2002 Location: somewhere in, MI Posts: 8,544	Re: EGR block (melissah) that is a question that is completely unrelated to this thread. Please create a new thread to discuss your problem(s). Thanks

12-13-2007, 09:51 AM	#17
JDM_CD7 Member Join Date: Jul 2002 Location: Behind ur momz,pullin her hair, CA, USA Posts: 2,010	Re: EGR block (TouringAccord) Beautiful write up __________________ "expletive what you think, i'll still out handle you" <----1995 Accord EX Coupe (CD7) PAYPAL VERIFIED My Vouches: Bigxclumzy,TheBEeGuY,FF-Greg,FF-Sean, FR-MOB: The B33 Gay,DUFFM4N, Shelton, Freaker, 91CrXB16a, 88crxkidsir (Los), donut, and more just can't remember names http://images.honda-tech.com/set1//smile/emcrook.gif

12-13-2007, 07:56 PM	#18
Power Rev Racing Join Date: Feb 2004 Location: Ft.Lauderdale, FL, USA Posts: 2,108	Re: EGR block (JDM_CD7) Nice write up !!!

02-14-2009, 05:58 PM	#19
Mafia_Insurance New User Join Date: Sep 2008 Location: Miami, Florida, USA Posts: 3	Re: EGR block (disable system how to) Can you rehost the pictures? I only see red x's

04-28-2009, 07:19 AM	#20
bdmlilburn Junior Member Join Date: Mar 2009 Posts: 148	Re: EGR block (disable system how to) can i block of the egr on my 96 accord ex f22b1? obdll and i will need to get emissions this summer. i can always unclog it for emissions the pics are broken links but im guessing all you gotta do a fab a block off plate and use some sealer to seal it down over where the egr valve would be. would it be best to just make a block off plate and put the egr vavle back on with the plate underneath it? after doing this what do you do with the vacuum hoses going to the egr valve?

05-21-2009, 09:46 AM	#21
d1n0 Junior Member Join Date: May 2009 Location: manila, philippines Posts: 12	Re: EGR block (disable system how to) help, why is it i cant see the pictures?

05-29-2009, 06:16 AM	#22
5hift_shop New User Join Date: May 2009 Posts: 5	Re: EGR block (disable system how to) great post, thanks

06-22-2009, 05:45 PM	#23
bsivoljr Junior Member 1995 Honda Accord Join Date: Jun 2007 Location: Tx, USA Posts: 248	Re: EGR block (disable system how to) This would create a mean pressure I would think in the head. And also make your engine so dirty and contaminated inside. This is cheap. What you should really be doing is installing an oil catch can to catch the contaminants instead of blocking them and forcing it to stay in the head. Dumb IMO

06-22-2009, 06:27 PM	#24
GhostAccord Member Join Date: Mar 2007 Location: East Coast 506, Canada Posts: 3,614	Re: EGR block (disable system how to) This wouldn't cause any pressure difference in the head. The exhaust gas recirculation system works off vacuum from the intake. As the EGR valve opens, the vacuum created by the intake manifold pulls exhaust gases into the intake system. Through a small opening in the left exhaust port on the #4 cylinder. An oil catch can is used in line with the PCV system to catch any oil and carbon from getting into the intake manifold not exhaust gases. However I still think that this mod will throw an insufficient exhaust gas flow CEL after a while. You may not get the EGR lift CEL but insufficient flow should still be detected. __________________ CD5 "Ghost" F22B2 ITB Blog My H-T Build Thread Cheers! Last edited by GhostAccord; 06-22-2009 at 06:37 PM.

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