I would just love to know what other tuners think about leaving the EGR valve installed on the intake manifold.

Should it be removed and a blocking plate installed when boosting above 15+psi?

Anybody finding them leaking under high boost? B18, H22 etc.

 

What do you think?

 

I thought I was on honda-tech. I guess nobody is having problems with EGR valve.

 

When you ask such a question, you should also consider what the purpose of the EGR valve is. The EGR valve recirculates uncombustable gas back into the intake in order to lower combustion temperatures thereby reducing nitrogen dioxide content in the exhaust. If you removed the EGR, and didn't tune to compensate for it, it would be safe to say that you would probably run lean.

 

Right remove it before you tune, unless you have to pass emissions(haha).

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr. Helsinki &raquo;</TD></TR><TR><TD CLASS="quote">When you ask such a question, you should also consider what the purpose of the EGR valve is. The EGR valve recirculates uncombustable gas back into the intake in order to lower combustion temperatures thereby reducing nitrogen dioxide content in the exhaust. If you removed the EGR, and didn't tune to compensate for it, it would be safe to say that you would probably run lean. </TD></TR></TABLE>

I am using an aem ems and the valve is therefore not used. I just want to know if some guys have seen them leaked back in the intake under high boost. I know I can use a blocking plate.

 

uuuuuuuuhhhhhhhhhhhhhhuuuuuuuuhhhhhhhh.

 

Are you sure that the AEM EMS does not use the EGR? I was under the impression that it used all of the originl functions.

 

No the EGR is not used by the EMS, and I am glad it's not cause it's so useless.
EGR valves are used to reduce NOx emissions with the cat. I think it's more politic bull* if you ask me.

According to the number of response I got here on HT, It seems not many people have knowledge of the EGR system so I decided to disable it just in case.

 

diable it right before your next tuning session put a blocking plate on there try not to stay in boost to much. the only time you should keep that POS if running a p13

 

"try not to stay in boost to much"

Uhh, care to explain?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Flr Power &raquo;</TD></TR><TR><TD CLASS="quote">
"try not to stay in boost to much"

Uhh, care to explain?</TD></TR></TABLE>

yes, with the EGR disabled you will probally be running a tad lean, so while your driving to the shop try not to boost to much detnation is a bitch. like try stay in more vacuum than boost until you get your fuel corrected.
don't try racing down the highway in 4th spoolin 15psi

 

helpful thread, thanks guys

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fastrunner &raquo;</TD></TR><TR><TD CLASS="quote">Right remove it before you tune, unless you have to pass emissions(haha). </TD></TR></TABLE>

you can still pass with out it