I still don't under stand what EGR is. I know it stands for Exhaust Gas Recirculation, but I don't know why you would need to disable that. But I disabled the 02 sensor and 02 heater and that is supposed to keep you from getting check engine light if you have longtube headers, and so far it has worked for me.What are you guys doing with the EGR setting and also the o2 sensor has o2 heater and o2 sensor what settings are you using with those.
At Part to WOT the EGR sends some exhaust right back into the intake. There is a port in the head or intake that sends the gases back in usually. The SMOG folks figure if burning the mixture once does not cut it, "we'll run 'er through again boss".I still don't under stand what EGR is. I know it stands for Exhaust Gas Recirculation, but I don't know why you would need to disable that.....
So on a Charger we can shut it off with no ill effects?what a lot of people dont realize is egr is either vacuum or electronically operated. Never will egr be used if your on the throttle at all . It is used to reduce spark knock in vehicles with off center spark plugs as the flame front has to move throw the whole compression area, and also for emissions of course too. But either vacuum or elec it is shut off under throttle so dont trip about it hurting performance, it doesnt.
Anything you can do to get More Air and Fuel in the cyclinder builds power.
Makes sense, but if it shuts off at WOT, is there a significant difference?Anything you can do to get More Air and Fuel in the cyclinder builds power.
Shutting off the EGR will prevent the intake from sucking up any nasty old exhaust gases = more clean new stuff for more umph
as long as you dont have any spark knock at idle and the light stays away with code reader yea, you'll be fine. Smog time put it back to stock.So on a Charger we can shut it off with no ill effects?
(other than when it is SMOG time)?
If they have long tube headers, it can sometimes effect the system. But mainly it is due to the old foogey's fromt the 60's that dont understand electronics on the newer cars. Its the same myth as driving with your tailgate down increases gas mileage when that is actually completely opposite.
EGR was designed to begin opening at part throttle and be fully open at WOT. This because if you put a big dose of exhuast in early, your motor would run like heck, so they introduce it little at a time.Makes sense, but if it shuts off at WOT, is there a significant difference?
Would you get better throttle response at lower levels?
The reason some have been asking for the EGR off option is that they have already removed the EGR and are getting codes and CELs from HAL. So Diablo has fixed it to where HAL no longer sees the EGR and now you have no codes. Why have they got rid of the EGR? Some have want Aftermarket intakes and exhaust that do not support the EGR and like the statement above. We want fresh air not recirculated air. You need Oxygen, fuel , spark, and combustion to get the piston to move. The cleaner and denser the air the better the performance. Exhaust gas is also hotter than the air coming in, therefore it also increases the IAT. Though I doubt that the heat increase is very much, but when you have to fight for every increase in performance you look everywhere.
1. It is how you want to look at it. If you are performance oriented then yes turn it off. If you are environmentally worried then keep it on. If you are having idling issues or partial throttle issues turn it off..... so turning the system off is good? so thats another reason for me to get the Diablo? lol