Subject: Re: So My Car Failed Emissions... by Randyj75 on 2009/5/15 3:48:12
Quote:
bogus wrote: Not to put too fine a point on it, but, you removed the damned EGR.
That is EXACTLY what the EGR is designed to do. And it is why it is not your enemy.
As the engine heats, and the cats heat, the EGR comes into play to put a touch of exhaust gas back into the combustion chamber. That lowers the combustion temps, lowering the chance of detonation and the output of NOx.
NOx is a component of acid rain, by the way.
And guess what, removing EGR gained you exactly a zero HP improvement...
How to fix it? You might get away with a gas additive... but I doubt it.
I would reinstall the EGR and go from there. Seriously.
Andy, The reason the EGR was deleted is because it set a code after the new exhaust system was installed. Everything was fine w/ it before the change, it seems that speed density cars need a certain amount of back pressure for the EGR to work correctly, so I really had no choice. That is the reason the car has a custom chip, to delete the EGR.
