block egr

[turbotoot2]

my question IS, WHY I SEE SOME PEOPLE BLOCK THE EGR VALVE, CAN SOMEONE TELL MY WHY THEY DO IT 4

[cp[mike]]

because they dont want exhaust gasses getting passed back into the intake air stream to be reburnt.

[Chrisisiced]

because they dont want exhaust gasses getting passed back into the intake air stream to be reburnt.

I understand this theory but wouldnt that throw a CEL which would in turn be bad?

[cp[mike]]

I understand this theory but wouldnt that throw a CEL which would in turn be bad?

removing/disconnecting/disabling the valve and/or lift sensor would throw a CEL. putting a blockoff plate underneath it makes it think its working properly, just no gas is able to pass through. no CEL, and the plate isnt usually visible.

you can only remove the valve if you have an ECU that doesnt check for it, like a chipped civic ECU, as civics didnt come with EGR systems.

[F22HB]

From what I've read, because I was considering making a plate to block it off, it seems like it isn't too much worth it..

[turbotoot2]

can someone show me pics on how to do it and is it good 2 do this on my car

[mrhonda]

Blocking off the EGR is completely pointless. The reason being...EGR is completely closed under acceleration, it only opens under light throttle at cruising speed (such as cruising on the highway). Once you hit the gas to accelerate the EGR valve closes back off. Blocking it off doesn't give you any more horsepower, it will just cause you to fail emissions testing.

[Rosko]

the gas from the egr system can heat up the manifold, however its minimal. I agree with mr. honda. I think most people do it for a cleaner look.

[F22HB]

Blocking off the EGR is completely pointless. The reason being...EGR is completely closed under acceleration, it only opens under light throttle at cruising speed (such as cruising on the highway). Once you hit the gas to accelerate the EGR valve closes back off. Blocking it off doesn't give you any more horsepower, it will just cause you to fail emissions testing.

lol, well there is your answer. Good info.

[AccordXRacer]

Then how would you know if your egr valve was working?

[CB7 Killa]

they do it because its cool. its the racer in them. you get liek 900,000 horsepowa from it.