The EGR Limiter

[slocar]

About 3 years ago I used to frequent this site under a name I have forgotten. Anyways, the hot product was the EGR limiter that was sold here. I was wondering if the EGR Limiter is still sold (I couldn't find it anywhere on the site), or where I could get one.

Thanks.

My truck: 2001 Sonoma 2wd V6

[Joker2040]

I will make a batch of them if enough people want them.

[white00s10]

heck yes


2000 s-10 4.3



i think there would be a serious market for them

[Joker2040]

Anyone else?

[Sparky2263]

Should we even bring up blocking it off totally? ;)

[rat]

Should we even bring up blocking it off totally? ;)
Thats how i did it. Before that i did the sheet metal plate. And before that i did the fresh air egr. That "recuirculated" air from the intake tract.

[Joker2040]

For the 2001-up it is a little trickier then just blocking it completely off.

1st you have to block off the engine where it wants the air to come in at.

2nd you have to block off the part on the exhaust manifold that sends it to the engine.

3rd you have to reflash the computer to keep it from throwing a SES light.

It's your choice...

[Joker2040]

Now on earlier models it's different.

[rat]

For the 2001-up it is a little trickier then just blocking it completely off.

1st you have to block off the engine where it wants the air to come in at.

2nd you have to block off the part on the exhaust manifold that sends it to the engine.

3rd you have to reflash the computer to keep it from throwing a SES light.

It's your choice...
2002 has no (some say external)egr. '96-'01 are all the same. You do need a reflash to keep the ses out. But you can leave everything, and just unplug the valve. Or you can just make a block off plate on the manifold.

[Joker2040]

My apologies for not explaining myself. I'm a little drunk right not so bear with me. The 96-01 s dimes have the valve in which i'm speaking of. Now the newing S-10's yhave the internal valve.

[Joker2040]

i tel you what if you have any questions post them uip..... I'll answers them tomorrow. Again I apologize for this.

[biglouie_underpressure]

i have one forsale biglouie3rd@aol.com

[RedX001]

I have one that was made out of aluminum. If any body is intrested pm me.

[RedX001]

I have one that was made out of aluminum. If any body is interested pm me.

[KRUZER1]

i gotta ask...what benefits are there from limiting the flow or blocking off the EGR?

[Sparky2263]

The transition from idle or cruise to power enrichment is greatly enhanced. Part throttle acceleration increases measurably and overal driveability is much improved.

[Joker2040]

The transition from idle or cruise to power enrichment is greatly enhanced. Part throttle acceleration increases measurably and overal driveability is much improved.

What he said....


Shew boys I had a rough night/morning.

[KRUZER1]

right on thanks, only thing i could think of is cooler, cleaner air. tell the story Joker.

[slocar]

Well I had an idea to make a screw type EGR limiter. I went to the hardware store and bought a pipe plug and a pipe cap (total $2). I then put them together end to end using JB Weld. I don't have a digital camera, but I drew a representation in paint.

My question is, what diameter hole should I drill out? My truck is a 2001.

edit: and for some reason I drew left handed threads on my drawing, just ignore that.

[Sparky2263]

I'd start with a 5/32" hole and increase from there if the ck. eng. light comes on.

[Maxx]

heres the print
http://www.s10planet.com/gallery/data/541/medium/EGR_print.jpg

[Sparky2263]

That says a 1/8" hole. I'd go with it.

[T Man]

87 S-10. What possible problems could I run into if I totally block it off?

[Sparky2263]

On a 2.8? Hardly any 'cept for a code 32

[T Man]

Im worried about buring pistons.

[j894]

You know egr is on and off durring normal engine operations, right?

[T Man]

yes, but i have heard horror stories of high speed problems, i.e. burning pistons.

[Sparky2263]

It would be pinging a great deal before it burned any pistons.

[KRUZER1]

good to know i was plannin on blockin mine on an 89 4.3, as long as not hearing any kind of ping, im good right?

[Sparky2263]

Yup. The key is to take advantage of the lack of egr by increasing fuel delivery and timing. This results in a rather significant increase in power.

A custom chip that gets rid of the code 32, adds fuel and timing, is the ticket.

[j894]

can't ya just make a restrictor or block-off plate
and keep the egr plugged in to accomplish the same
thing?

[KRUZER1]

Yup. The key is to take advantage of the lack of egr by increasing fuel delivery and timing. This results in a rather significant increase in power.

A custom chip that gets rid of the code 32, adds fuel and timing, is the ticket.

thank you

[jdhogg]

if it will help ill do anything.

[jdhogg]

ill try anything twice

[white00s10]

anything happening with this? im still willing to buy the mod

[THA_BAD_ONE-0]

So what years is this from. What do u gain from blocking it off.

[rat]

So what years is this from. What do u gain from blocking it off.
You can restrict anything with egr, like the '01 and down trucks. This thread is more specficaly about the '96-'01 trucks. As far as blocking it off compleatly, if you are talking about a '96 up truck, make sure you also unplug the sensor. The computer advances timing('96-'01 do at least) when the egr is on, you don't really want it to advance the timing when the egr isn't flowing, as you might ping.

As far as what do you gain? Nothing quantifiable, it will not improve quarter mile times or anything. People claim it improves throttle response.

[abright52]

I have been looking for one of these for quite a while since I traded my old Blazer with the fitting still installed.

Any chance of them being made again?

[jdhogg]

i would like one,just let me know the cost

[Joker2040]

I can make these if enough people want them. I currently have one.... just one though.... and this is for 96-01... It's not a block off plate

[jdhogg]

i;ll take one for a 94 4.3

[rat]

i;ll take one for a 94 4.3
Just make your own with some sheet metal and a couple extra egr gaskets.

[jjwalker]

either that or completely disconnect the EGR all together, run premium gas, up the timing, and ignore the SES light.

[rat]

either that or completely disconnect the EGR all together, run premium gas, up the timing, and ignore the SES light.
You would actualy want to retard the timing. The '96 up ecm's for example have an egr advance table, when the egr is active it adds timing. So if you were to eliminate the egr, but the computer didn't know it you would be running advanced timing already. I think this is part of the reason the egr limmiter works is that less egr(denser charge) on the advanced timing in the egr tables for '96 up. I don't know if the advance is built into the stock tables on the '95 and down ecms, or if there is a seperate table that would be locked out with an egr code.

[725]

I am have prblems with my 94 Jimmy. I believe it is the EGR. It is hard to start and it runs rough. What can I do to fix that short of spending $150 on a new EGR.

2nd: I would like some information on hot to do a 5.7 swap in it. Thanx

[dg94s10blazer]

I just read about this mod on a different s10 site. Do you have any detailed directions on how to go about doing this mod? Will it throw codes? I already have code 32 thrown every now and then and the main reason I want to do this mod is to get rid of that and hopefully improve overall driveability. Any suggestions? It is a 94 4.3 cpi.

[rat]

Get an extra egr gasket, trace it onto some sheet metal, and drill the holes smaller. If it throws a code then drill the hole slightly bigger.

[Sparky2263]

Start out with 3/32" holes.

[viper500hcp]

on the 96+ engines does anyone know the inside diamter of the egr tube itself? not the fitting part

[rat]

Half inch maybe if i had to guess.

[viper500hcp]

i found a 1/4inch (i/d) with a 1/2inch o/d metal tube with a manual valve, would the egr gas be able to open the valve (its for an air compressor) or do you think this would be able to stay where i set it?- just enough open to keep the ses light off plus i can open it all the way for emmisions assuming this will work

[rat]

I guess i don't see it. I don't know how you would seal it to the tube, the tube is really thin walled.

[viper500hcp]

the outside diameter is 1/2inch male threaded. so i would sqeeze the egr tube over each end and use a hose clamp on each side to keep it sealed. then adjust with the the valve to were it works the best

[viper500hcp]

is the egr tube goinin into the intake manifold more than an 1nch thick? or is that just a protective barrier that i can remove a part of to get to the tube?? as long as the inside diameter is no more than 1/2inch i dont care on the outside diameter, just wanna have the right size clamps