if i remove the egr equipment from my 99z, will it hurt anything to keep it that way till i can afford to get a retune?

other than the SES light problem...can it damage anything? will the computer keep looking for something that isn't there and eventually start cutting performance to try to fix the problem?

 

I can only tell you what I know, because I still have egr questions of my own that continue. My Z hasn't had the egr hooked up since I got MAC headers, which was about early august. The SES will get tricked, and the car will slowly start running worse and worse. Right after it wasn't hooked up you hardly notice any difference, slowly and slowly it will start burning some oil as the computer tries to figure out whats up, and performance will slowly get worse. From August to early October my performance got alot worse. According to GM, you can program the reprogram the program to forget about EGR, and thats what I hope to do in the next month.
My question is.... with EGR gone, will it still pass the sniffer? In my county some new emissions law is going in effect where they simply connect a computer to your car and if it senses anything wrong then it fails. It also can detect O2 simulators from what I heard. So will it get tricked if the computer has been reprogrammed without EGR?

 

"slowly it will start burning some oil as the computer tries to figure out whats up, and performance will slowly get worse"

that's what i was affraid of.

i guess i'll be trying to figure out how to mate 00-02 headers to my 99.

i know it's jsut the alignment of the egr tube (from what i've been told), someone said i could just bend it...others say spend the $80 for the newer tubes and that will fit fine.

 

EGR connects onto the header. THe performance shop I got my headers put on said they could take part of the stock headers, weld them onto the new ones or something like that. Shouldn't be that difficult for a place that knows what they're doing.

 

hasn't done a thing wrong to me except steal my SES light..... just need to get it tuned out

 

Do you mean AIR hoses? 01-02 dont have egr system b/c they have the ls6 intake which has no provisions for it.

Also why would deleting the egr cause you to start burning? I dont doubt the fact it started burning oil after you took it off, but are you sure it isn't something else causing the oil loss? All the egr does is recycle exhaust gasses into the intake and has no connections to the crankcase.

 

I was wondering the same thing

 

"Do you mean AIR hoses? 01-02 dont have egr system b/c they have the ls6 intake which has no provisions for it."

oh yeah...good point...i keep getting those confused with all the research i've been doing on this topic...

thanks.

so the concensus is that removing the EGR only affects the SES light? i was wondering why it would START to burn oil from the removal of a system that recirculates gases??

 

for me it was a combination of running rich after putting on the headers and the egr being unhooked. The tech explained the sudden amount of oil being burned being attributed to running rich and crappy. I just got a LS-6 manifold without the egr modification, so the EGR will be completely eliminated physically from the car. Hopefully within a month ( the camaro isn't going driving in this crappy weather) I'll get the computer retuned to lean out the A/F mixture and to eliminate EGR from the computer. I'm just hoping the new inspections here don't pick up on it.

 

I removed my Air tubes that run into both headers, the Check Engine light came on but thats it, runs fine. I was also not going to repalce the rear 02 sensors when i got my off road Y pipe.

 

my car did require some programming. The car ran really crappy, and a spark plug got burned out. The lack of air throws off the computers mixture. I didn't have the car tuned, I just had the EGR programming taken out. It runs better, but I can't wait to see how it runs when I get it tuned

 

So basically, with my 99 SS I should only get an LS6 intake manifold w/ EGR provisions...unless I want to F~ my car up in some way shape or form.

Why don't the 01-02 cars have an EGR? Is it really not important?

 

I am almost certain that the 01-02's have the EGR provisions made into the grind of the camshaft.

If your headers are for a 2000, the EGR will be different than 98-99.
In 2000 the still had EGR, but GM went to cast iron exhaust manifolds and the EGR pipe that connects to the exhaust manifold is about 6-8" longer than the 98-99's.
So if your headers have the EGR provision and you want to run and EGR you will have to get one for a 2000 model.

 

Thanks alot, I got it now! SLPs LS6 w/ egr provisions is the way to go!

Good for about a good 10 HP?

 

You can still get the one without the EGR, just get a block off plate for the header and tune out the EGR