Out of curiosity today I disconnected the EGR valve on my '86 Prelude 1.8 dual carb w/ 5 speed. My good ness what a difference it made. Drivability when the engine is cold is great, I don't have to rev it out the wazoo to keep it from shuddering and bucking anymore. Also, I immediately noticed a huge increase in power. The thing loves to rev now, I step on the gas and it really winds up, and throttle response is so crisp and quick. Before it would accelerate and rev nicely (though not as good as it does now) until a certain point of throttle opening when presumably the EGR valve would really start to open up. The car would then fall flat on it's face and bog down, if I backed off the throttle it would perk back up. Now I can slam the throttle down and the thing winds up and keep going. I guess what I'm getting at is that it feels like a whole new car. I would prefer to have the EGR valve connected to reduce emissions, but not unless the car will run right with it connected. I think I'm going to try taking it off and cleaning it out to see if that helps at all. If not then I'll leave it as it is now. So does it sound like the EGR is working properly? It definitely is 'working' as I can tell a huge difference when it's connected. The car will now push you back into the seat if you get on it, I love the performance. Also I expect mileage to increase, as I've heard others say that when their EGR valve broke or they disabled it their mileage increased a good bit. I would think the increase in mileage from a better running engine would help offset the increased pollution. Anyway, let me know what you guys think about keeping the EGR disabled, and if there is any way to get the engine running well with it connected. Cory
