2.3 Egr?.........

[Wicked_Sludge]

Resurrection Ranger, im sorry if my original post came off sounding arrogant or otherwise offensive. i didnt really intend for it to. i just see the EGR systems functionality described inaccuratly far too often on automotive forums and i hate to see misinformation proliforated like that.

bryan, the DPFE sensor is the "brain" of the EGR system. unplug it and the computer has no idea whats going on, so the EGR is shut down.

shadey, you are correct in that nothing is definite. the EGR system in my blue escort has been disabled ever since the regulator diaphram went to crap on it months ago (try finding emissions control devices for a 20-year-old car ). i went from 34 MPG average to about 31 MPG with my daily commute being about 95% highway.

 

[mongo]

http://www.cadvision.com/blanchas/Ranger/index.html

this is how to get a little more power out of it

the egr in a nut shell

it takes exhause gasses from the header and run it into the intake after the throtle body and mas

meaning it changes the air fuel mixture in the computer because it dosnt make up for it

if you unplug it it runs like it has bad plugs

i took mine off and blocked it off with some metal like he did no real power gane or mpg but anything that is taking exhaust out of my engine

i mean its got to help with carbon build up on valves and my truck runs on fuel fire and air not fuel fire and varis gasses that the government dosnt want in the o zone

because the egr tube is before the cat

i blocked mine off and in glad i did

 

[Wicked_Sludge]

ive seen that page before. i wish someone would take it down. the amount of misinformation there is staggering.

as i said before, exhaust gasses are inert, meaning they do NOT change the a/f mixture. the computer also has full input and control over the EGR system, meaning it DOES know its there and will compensate.

if you didnt gain any power or mileage, why are you glad you disabled your EGR? because now your spewing more pollutants into the air that we all have to breath? because you dont understand how the EGR system functions? please, read through my first post.

 

[mongo]

i did

but why shove carbon into my engine

 

[mongo]

and for the record im hear to learn stuff i dont know not to be smart but ill tell you what i do know so if im or you got a better way to do something please tell me

 

[Wicked_Sludge]

a properly running gasoline engine produces an insignificant amount of carbon. if your having carbon fouling problems its because your engine is out of tune, not because the EGR system...and disabling the EGR will not prevent carbon from building up in the chambers and causing future problems.

 

[mongo]

see i ran into the same problem you did with you escort with my 79 302

so i blocked it off and got more mpg

so i did it with this one

 

[Wicked_Sludge]

napa has all the parts for the EGR system for your '94 available.

ive been hunting junkyards for a control solenoid for my escort, but i havnt found an intact solenoid yet. when i do i will re-install it so i can advance my timing again.

 

[shadetree]

ive seen that page before. i wish someone would take it down. the amount of misinformation there is staggering.

You're right. It should be named "what not to do to your engine."

as i said before, exhaust gasses are inert, meaning they do NOT change the a/f mixture.

Not really "inert," but that is a discussion for another time. Incoming exhaust gasses do change the a/f mixture in that the gas takes up space that could be used for more a/f mixture, plus the heat from the exhaust causes the incoming oxygen to be less dense, hence less efficiency.

the computer also has full input and control over the EGR system, meaning it DOES know its there and will compensate.

It "somewhat" compensates. But, here again, one size does not fit all. In many, if not most cases, the egr is a trade-off, a little less power for more emissions control.shady

 

[Resurrection Ranger]

Resurrection Ranger, im sorry if my original post came off sounding arrogant or otherwise offensive. i didnt really intend for it to. i just see the EGR systems functionality described inaccuratly far too often on automotive forums and i hate to see misinformation proliforated like that..

No harm done.. Thanks for straightening out my understanding.

 

[kkjb4x4.0]

My 4.0 with almost 300.000 km's passed e-test no problems with the EGR disconnected. It does trip the c.e.l though. I was unaware that this was illegal, and because it was disabled because of driveability issues I can't tell if it causes issues, lol.

 

[Bryan22]

in cali you can't pass the emissions tests with a CEL on.

 

[mongo]

what if you block it off ...


the computer still thinks the system is running right and you in turn have lower temps and more real air

 

[Bryan22]

the guys who do the smog test check to see if your EGR is functioning, plus blocking off the egr will set a code off when the DPFE realizes it's not working.

 

[Wicked_Sludge]

what if you block it off ...


the computer still thinks the system is running right and you in turn have lower temps and more real air

see my original post.

the EGR's whole purpose in life is to LOWER combustion temps. removing it will raise combustion temps.