egr question

[94-camaro-v6]

ok, aside from possible error codes is there any problem with blocking off the egr.

[98Camaro3.8]

Increased emissions, higher combustion chamber temps, detonation, lower gas mileage.

[94-camaro-v6]

ok thanks, kinda gotta ask the question why do people block them off ?

[98Camaro3.8]

Alot of times people - like myself - block them off because it's damn near impossible to hook up correctly with aftermarket headers. You run the risk of detonation, but if you can't get it to fit what are you gonna do?

[Dominic]

the EGR closes at WOT anyways, why bother?

[andrew.brandon]

Originally posted by 94-camaro-v6:
ok thanks, kinda gotta ask the question why do people block them off ?

tried changing spark plugs on a f-body? ;)

[pontiac nino]

Originally posted by 94-camaro-v6:
ok thanks, kinda gotta ask the question why do people block them off ?

It tends to malfunction alot, especially on 3.4's. Solenoid #3 loves to be whore at highway speeds and not open correctly, thus giving you a SES code, it don't increase detonation nor combustion temps, our ain't digital like the 3.8 You lower gas ,milage by about 1-2 miles a tank, I wouldn't recommend removing it, it's just annoying to constantly have a light on. I blocked mine for a while but i left the egr connected to the harness to prevent any codes from going off, just leave it on.
My .02
Nino

[pontiac nino]

Originally posted by Dominic:
the EGR closes at WOT anyways, why bother?

EGR opens @ WOT, what do you mean? Each solenoid fires one after the other, #3 opens somewhere around 3k rpms 60-65 mph.

[98Camaro3.8]

Originally posted by pontiac nino:
it don't increase detonation nor combustion temps, our ain't digital like the 3.8

It may or may not be digital, but that has nothing to do with it. The whole point of EGR is to lower combustion chamber temps which reduces NOx emissions and detonation.

[wolf]

Originally posted by pontiac nino:
</font><blockquote>quote:</font><hr />Originally posted by Dominic:
the EGR closes at WOT anyways, why bother?

EGR opens @ WOT, what do you mean? Each solenoid fires one after the other, #3 opens somewhere around 3k rpms 60-65 mph. </font>[/QUOTE]if its working right it should be closed at idle and wot

[Guardiannknight]

I keep my egr hooked up after i installed my headers. Although, I put a block off plate on the headers and a breather on the end of the egr. So, now it breaths in cooler air compared to the hot exhaust air, also I'm sure my TB stays cleaner now. :D

[pontiac nino]

Originally posted by Guardiannknight:
I keep my egr hooked up after i installed my headers. Although, I put a block off plate on the headers and a breather on the end of the egr. So, now it breaths in cooler air compared to the hot exhaust air, also I'm sure my TB stays cleaner now. :D

Thats exactly what I did the first time, worked damn well. :D
Did you notice any changes? My car seemed just a weee bit louder hmmm.

[Guardiannknight]

Yeap ^^^^^^
Plus I can hear the egr suck in air while I'm driving, it's pretty cool. :D

[99v6cam]

I can hear my egr suck in air too. At first I was like WTF is that sound coming from. I don't have a breather on it though, it's just open. Blocked off on the header.

[venom]

I have a question. I was always told that blocking it off kept you from sucking in all that hot air. How do you have hotter combustion chamber. Or am I misinformed. (never had detonation problems, but I always run 93 octane, could be that overcomes it)