what will happen if i remove all my egr stuff, im thinking about doing it. i have no emissions stuff to go to and i hear alot of people do it. what do you think.

 

Your ECM will throw a code 32 without the EGR feedback (you will need a chip change, low temp T-stat or fool the ECM to prevent the code) and your only "gain" will be in getting a cleaner engine compartment.

 

There seems to be 2 schools of thought on this, one side taking it off brings better performance. The other side says no gain, no help period and it helps the ozone.
Your car is made to run with EGR, it ways a couple of pounds total. Unless you are modding out your car, just leave it there. It requires almost no maintence and you don't have to get your ECM flashed to stop throwing codes.

 

I'm guessing pre-emissions cars have no EGR. I'd worry occasionally about my higher comsbustion @ cruising, but maybe when my coolant and/or temp is above 220 I'd worry a tad. At least I have no more worrying about fouling up the intake and TB and IAC because the original owner of the car for 15 years has gutted the cat and stuck a straight pipe through it to make it look like it still functions. Unless I'm moving to a place with emissions testing, I'm not gonna bother with spending 500-1000 dollars on fixing this yet. Plus the dealer that gave me this car certified that the emissions controls work so then I'm just gonna take it back to them so they can spend their own pocket change in putting all of the emissions controls back while I just take my torx screw driver and remove the block off plate I installed between the lower and upper egr pipe. Looks 100% stock and I had my eprom reprogrammed in order not to throw a code 32 while EGR would still remain functional if I decide to remove the block off plate between the pipes.

 

Mine is throwing a code 32 now. I can ride back roads or stay in town all day with no code, 15 minutes on the 4 lane and bingo. Will it hurt it to leave it alone ? It looks like a pain in the butt to change.

 

You'll need the chip changed to take out the 32, but otherwise you should have no ill effects. You can leave it be, but its going to set the SES light.

 

I'm glad to hear it, I'm tired of fixing **** and I think the starter is about to take a dump.Soon it will be new again!!

 

Hate to differ opinions on this, but I removed ALL of my EGR & AIR gear about 2 years ago and never got a fault code.

 

When I removed all of that junk 2 yrs ago I didn't use a blockoff plate; just had a freind TIG the EGR valve hole shut. I DID for quite a while drive around with some cool looking (Well, I thought so at the time) brass fittings I bought, attached to the end of each exh.manifold where the diaphrams used to be. Then after enduring a ticking sound for ages, thinking it was just my exh. pipe thinning, a freind spotted the AIR injection pipes on the manifold were CRACKED where they met the exhaust...So I removed both, cut the pipes flush with a dremel and had him TIG all the holes shut - no more ticking!

As for the solenoid at rear and valve at the front of the engine; I removed these too AND all the stainless piping and garbage. Clkeaned up the apprearance quite well.

Main thing is you may have to fiddle about with where to route the vac hoses. I DID have quite an extensive thread going here once that pretty well answered all my questions at the time, but I see it's no longer in the archives, which sucks...I DID find this link tho which may also aid you in your quest:
http://forums.corvetteforum.com/show...m_id=48&arch=1

Anyway, thats the crux of it; never did get any code 32's as I was expecting.

Performance may have improved ever so slightly, and I DID notice 1 or 2 extra miles from each gallon after it was all removed.

More recently (Having done an inlet manifold 're-sealing') I also removed the last bit of the system which was a bracket held down by two intake bolts.

So there you have it from someone that did it (on my '85).

*IF you live in CA tho; I'd not take anything off as you may find the transport department will just make you put it all BACK on again!

Hope that helps to some degree

 

If anyone has the egr tubing off a 93 I sure could use it. Mine is bent and I like having it working.

Perry

 

I have most of my old bits from the '85 but not sure it'd be the same...

 

Here's my 2 cents worth. 2 years ago, when I rebuilt my engine on my 89 coupe, I installed Hedman racing headers with no AIR tubes, removed all the AIR and EGR stuff, had a custom true duel exhaust installed without cats, tucked the AIR and EGR cables out of the way and drove it like I stole it. I have NEVER had a code from doing this, though many said I would. Oh, I'm still running the stock chip, too. Good luck with your mods.

 

Yet another shout out to all you kind folks who just love to **** up the air we have to breathe. Thanks! You guys are the tops!

 

I don't get it... You can run 12's and even 11s without touching the EGR, why bother?? Heck I'm still using it and the catalytic and the car flies..

 

Removing the solenoid = no code.

 

Stock chip here too.

 

Oh Bogus; here was I supporting your thoughts in another thread as being about the only REAL answer to the guys original question. So ON that basis, I wont comment back to your anti-pollution thoughts...I'm sure that sort of thing would better suit the 'general discussion' forum.


PS: I dont know for sure what you guys in the USA call it, but I run my vette on 'Premium Unleaded' too; A higher % I believe of toxic byproducts etc, but this IS the TECH forum.

 

Now THERES an answer I haven't read ANYWHERE else before; THAT really puts paid to ALL the mystery code 32's !

 

As soon as the discussion turns to removal of cats on street legal cars (as long as the local laws permit the removal, I say nothing, cause international laws are much different), I get ticked.

It's a blatent disregard for our health. All for a couple of horsepower.

Removal of these emissions also indicates a certain lack of knowledge re: what they do and how they do it.

This should not change your feelings towards my opinions... by now, you should see that I am very consistant about them.

 

No worries; I standby my respect for your succinct answer to a question (on whatever thread it was now); The whole environ issue is enormous (factory emmissions & everything else) and has been hijacked many times on many forums so no need to add to it here IMHO.

As far as I know; EGR and CERTAINLY CAT removal IS illegal in all countries, but then so are a lot of things. Rules are made for the guidance of wise men & the control of fools (Or something like that!)