Quote Originally Posted by Jolly Roger VX'er View Post
I agree to disagree. The EGR's main purpose is emission control by "reburning" the exhaust gasses entering the EGR pipe on the passenger side of the engine block. It achieves this by sending exhaust gasses to your EGR valve which sends them into your intake to be sucked back into your cylinders for re-burning. The result is lower cylinder temperatures because the cylinders are not burning at high efficiency due to the "smothering" going on. Eliminate the exhaust going in during the intake stroke and you have only fuel & air going in. I've done this mod on my '82 Trans Am, '88 Fiero, '79 Bronco all with improved hp as felt by my butt dyno. I don't care if nobody here does it...I'm doing it. I'm only concerned with my PCV functioning which in my opinion could lead to oil burn-off if the EGR is blocked & the PCV ceases to function. THis already has happened in the past...that's why I have a breather cap installed so I can SEE when this happens...plus pull the little dipstik thingie to check the oil level.
JollyRoger you're right on as to the function of the EGR as it's an emissions-control technique and has no benefit to the function or performance of the engine. I too ditch the system wherever and whenever I can, but haven't on our VX's as it hasn't faulted yet. If it ain't broke! You shouldn't be concerned about PCV failure related to the EGR block-off as the two are not related functionally. The PCV operated from engine vacuum tapped at the intake to provide "Positive Crankcase Ventilation". The "Positive" is a bit misleading as it doesn't impy positive pressure on the crankcase side but rather an authorative ventilation method as provided by engine vacuum. Replace your PCV grommet every couple years and change the PCV itself every other oil-change and you'll have no problems unless you get a defective new PCV, but that's why you should check your oil regularly too! Otherwise you could retrofit a crankcase breather to the valve cover in lieu of the PCV.

For those using an EGR block-off we just need to determine what signal the ECU is looking for from the EGR so it can be "fooled" into thinking it's operating normally.