EGR Removal?
Thread Starter
Heel & Toe
Joined: Feb 2002
Posts: 20
Likes: 0
From: Springfield MO
EGR Removal?
Has anyone removed all of the components that make the EGR system? If so what all needs to be blocked off as far as vacuum lines and exhuast lines. I have block off plates for where the valve itself goes and for the thick pipe that comes off the headers do i need anything else????? What about electrical or idling problems after removal?
All replies will be greatly appreciated!
thanx
All replies will be greatly appreciated!
thanx
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Re: EGR Removal? (91 L-9ate)
Car will throw a code 32. Also, you will need a new chip that is correctly programmed for no EGR, not just one that shut's off the error code.
Removal of EGR has no performance benefits as it is not used at WOT, why are you removing?
Removal of EGR has no performance benefits as it is not used at WOT, why are you removing?
Instructor
Joined: Sep 2000
Posts: 200
Likes: 0
Re: EGR Removal? (91 L-9ate)
If you have an L-98, removing the EGR will NOT throw off any codes- can't speak for LT-1's, tho... I've had the EGR system off my 86 for five years now, runs perfect, no more heat running into the intake- and no idiotic clamps and hoses to fool with anymore- reason alone to remove the system!
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Re: EGR Removal? (vettenuts)
Removal of EGR has no performance benefits as it is not used at WOT, why are you removing?
Le Mans Master
Joined: Feb 2002
Posts: 7,858
Likes: 2
Re: EGR Removal? (91 L-9ate)
I wouldn't do that. Rumor has it that when the democrat proposed bill to encourage scrapping 15yr+ "fuel inefficient" cars with "financial incentives" bites the dust, that the compromise may be a federal crackdown on emissions. Just a hearsay rumor though :rolleyes:
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
Re: EGR Removal? (95_C4_convertible)
What does the computer use for feedback to determine that the EGR in not operating and show a code?
If the soleniod is still connected but the exhaust pipe from the manifold is removed (blocked off) how does it know no flow is happening?
What is the purpose of the sensor in the pipe from the manifold to the exhaust pipe?
If the soleniod is still connected but the exhaust pipe from the manifold is removed (blocked off) how does it know no flow is happening?
What is the purpose of the sensor in the pipe from the manifold to the exhaust pipe?
Team Owner
Joined: Dec 2000
Posts: 21,094
Likes: 282
From: Phila., PA burbs
Re: EGR Removal? (jcazin)
If you have an L-98, removing the EGR will NOT throw off any codes- can't speak for LT-1's, tho... I've had the EGR system off my 86 for five years now, runs perfect, no more heat running into the intake- and no idiotic clamps and hoses to fool with anymore- reason alone to remove the system!
Racer
Joined: Mar 1999
Posts: 292
Likes: 0
From: Vienna VA
Re: EGR Removal? (91 L-9ate)
I removed the EGR on my 90 L-98 when I installed my miniram. I believe our cars have the same computer. A code 32 will turn on during cruise conditions. A PROM programming change is required to disable the code. Do not know enough about programming to tell you what to change. The intake will run cooler, which = HP. Bypassing the coolant into the throttle body and changing the fan temp will also help the engine to run cooler. You should be able to run more timing with these mods. I had no problem passing emissions.
However, your car will not pass the visual inspection. I think that it is ridiculous to be required to have emissions equipment that is not required to meet the standards.
TPIS makes header EGR block off plate.
Carl
However, your car will not pass the visual inspection. I think that it is ridiculous to be required to have emissions equipment that is not required to meet the standards.
TPIS makes header EGR block off plate.
Carl
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Burning Brakes
Joined: Feb 2000
Posts: 927
Likes: 0
From: Saginaw TX
Re: EGR Removal? (rodj)
Answer to your questions all stem from that sensor in the pipe from the exhaust to intake manifolds. The sensor records the temp of the air inside the pipe. If the ecm is call for EGR flow, then the sensor should see an increase in the temp of the air flowing in the pipe. If no increase in temp, then code 32. Mine was throwing this code, but only intermittent. After I removed the EGR during teardown, I discovered by I was getting the code. EGR pintle would not move, was stuck closed by years of carbon deposits. As I live in DFW metro area and we are under even greater scrutiny for emissions this year, all devices will be put back on the car and will be functional. After some research, with the exception of racing (in organized, sanctioned events) I don't feel like the emissions gear hurts the performance enough to consider removal. Now back in the 70's...... :rolleyes: