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Author
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Topic: EGR Question
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cflores
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Member # 7319
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posted
 
 
I've looked around and i didn't really find an answer for this like i thought i would. I know they make block off plates, etc. I don't have any smog stuff, I actually already took it off and made a block plate for it, I just wanted to see if there was any advantage of leaving it hooked up, or if i was maybe wrong to remove it. Thanks
Posts: 85 | From: sacramento | Registered: Dec 2006
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Adam5.0
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Member # 6995
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posted
egr is only closed at idle and WOT so you wont get any performance gains. you will lose some mpg. I say leave it hooked up
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want something old and japanese
Posts: 1609 | From: Brentwood | Registered: Aug 2006
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cflores
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Member # 7319
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posted
I know nothing will come out of it performance wise, all i wont to know is if it would cause any problems w the comp. or anything? and how bad of a hit will the MPG take?
Posts: 85 | From: sacramento | Registered: Dec 2006
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BIGBALLFACTOR
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Member # 7277
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posted
quote:
Originally posted by cflores:
I know nothing will come out of it performance wise, all i wont to know is if it would cause any problems w the comp. or anything? and how bad of a hit will the MPG take?
leave the egr on it help cool cylder head temp down
Posts: 6908 | From: okc | Registered: Dec 2006
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JohnB
Tech Moderator
Member # 969
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posted
Will screw with the PCM if it's not hooked up, you'll kill 2-3 MPG easily due to increased cylinder temps, and it won't pass smog.
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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phildog
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Member # 1214
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posted
What about those EGR 'fooler' plug in's that simulate the Egr valve. I know a few early Mustangs with EFI that use the egr simulators with no problems. I have read on sbftech that they pull off EGR's all the time and that the computer will trip the CEL but when the computer no longer gets a signal from the EVP, that it will bypass the EGR and have no effect on drivability. The EGR simulators are simply designed to keep the CEL's from coming on.
BTW, this is for EECIV, not OBD2.
[ October 04, 2010, 02:58 AM: Message edited by: phildog ]
Posts: 1554 | From: 510 | Registered: Apr 2002
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cflores
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Member # 7319
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posted
quote:
Originally posted by phildog:
What about those EGR 'fooler' plug in's that simulate the Egr valve. I know a few early Mustangs with EFI that use the egr simulators with no problems. I have read on sbftech that they pull off EGR's all the time and that the computer will trip the CEL but when the computer no longer gets a signal from the EVP, that it will bypass the EGR and have no effect on drivability. The EGR simulators are simply designed to keep the CEL's from coming on.
BTW, this is for EECIV, not OBD2.
I read about the same deal taking place. That disconnecting it will make the comp. discard the EGR signal and not effect the motor in any way, but thats why i was asking about it, I wasnt to sure if this statement holds any truth to it. anyone know for sure???
Posts: 85 | From: sacramento | Registered: Dec 2006
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copcar
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Member # 10113
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posted
The egr sim only kills the check engine light. You will have the same negative issues associated with not having one installed.(typically hot start issues and mpg) I tested this when I did all of the exhaust testing on the dyno back home. I also tested the smog pump as well. 0 power loss at all rpm ranges both EGR and smog pump.
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12.37@ 109.34.NA 894DA Old Nitto 555 DR's Gt40 irons. B cam/1.7's, All emissions equipment on the car, stock air box. UPR catted X pipe.
Posts: 485 | Registered: Jun 2010
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