Stupid EGR

[The Dude]

Aftermarket Hi Flow. It's just bored larger.

[87mefull]

Go Figure......My 5.0 actually runs stronger now with the egr deleted (sensor still conneted),than it did with the egr system fully functional.Also no more nasty carbon buildup in the upper intake.My 2 cents,Delete it,plug the green vac line,and leave the egr sensor still connected,the ecm will think the egr is allways closed and won't start acting funny,it worked on my '87.Even if you gain nothing from the delete,the engine internals will stay a little cleaner due to less carbon buildup.We have no emissions tests here for anything pre-96,so I have done away with all the emissions related useless bullshit on my box.

I did that, didn't work for me. I plugged the line and left a brand new sensor connected because my egr valve failed. I think there might have been a slight power gain only because the car was running rich without it, but I barely noticed it. The car had trouble idling until I fixed it properly though. My car is bone stock though which is why it needs the egr valve compared to a worked 302 or HO motor. I known plenty of people that have deleted the egr valve on a stock HO motor in a 87-93 stang with little to no effects, but they removed all emissions equipment along with it (smog pump, plugged air tube lines into the cats, etc).

[Roach III]

Don't you also have to program the computer to not use the EGR?

[LTDMan83]

I did that, didn't work for me. I plugged the line and left a brand new sensor connected because my egr valve failed. I think there might have been a slight power gain only because the car was running rich without it, but I barely noticed it. The car had trouble idling until I fixed it properly though. My car is bone stock though which is why it needs the egr valve compared to a worked 302 or HO motor. I known plenty of people that have deleted the egr valve on a stock HO motor in a 87-93 stang with little to no effects, but they removed all emissions equipment along with it (smog pump, plugged air tube lines into the cats, etc).

The power gain from deleting the egr was barely noticable at all.The only noticable difference came from blocking the exhaust flow into the upper intake.Now the upper intake stays much cooler during long hard periods of highway driving,and dos'ent heat the intake charge as much.I'm sure you know the colder the air you can get into the engine the more power it will make.She still idles smooth and is definatly not running rich,judging from the condition of the spark plugs the mixture is fine.Anyway,I became fed up with the total bullshit hassle of emission testing long ago and was determined to do away with all the emissions equipment once the new emissions law passed here in 'Nov 05.