[hat_man]

Hello everyone.

I know there are numerous threads on here about blocking the EGR valve and the benefits and problems. I have tried to wade through some of them but most of it is technical and over my head. I understand the EGR (exhaust gas recovery) returns some of the exhaust to the intake air to be "re-burned" for better emissions. I read that blocking it off can improve FE (in some vehicles) but will throw codes and can possibly cause long term damage. If I'm on the right track so far then I'll pat myself on the back.

To block or not to block.....that is the question. Whether 'tis nobler in the mod to suffer the pings and CEL's of outrageous FE, or to take arms against a sea of troubles.........

The questions always comes down to these two extremes. Either completely block the EGR or leave it alone. Now, not knowing all the ins and outs of the EGR and vacuum system I do have a question. Would it be possible to partially block the opening for a partial FE increase? Something like a "block off" plate with a smaller diameter opening in it? Wouldn't this allow some exhaust gas back into the system and keep the ECM from throwing a code while still changing the temperature and "mix" of the air in the cylinders?

Maybe it's a silly question. Maybe not. I don't have a clue. It just seems like the extreme end of the EGR spectrum have already been looked at. I wonder if there is a "happy medium". Go ahead and laugh now. I can take it.