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dak-jak
Dodge Dakota
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4/13/2004
13:06:47
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 Subject: Larry--disable EGR
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Message:
Hey Larry , you said on another post that you disabled your EGR .
Can this be done on a basically stock 94 or 95
WITHOUT messing up the emissions ??
I have to be emission tested every two years ..
Thanks in advance..,,
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IntenseDak39
*GenIII*
4/13/2004
13:13:07
|  RE: Larry--disable EGR
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Message:
yes it can.
6.6 Lt. Big Block, 727 TF shift kit, 452 heads, edelbrock 750 cfm, .513/.513 284/300 crower cam, comp cams springs, comp cams pushrods, 1.5 roller rockers, dp intake, mopar ignition, mopar windage tray, dual exhaust w/ 40 series flowmasters, 4.10 gears, coilover drag suspension, approx, 3500 lbs
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93dakman
Dodge Dakota
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4/13/2004
22:15:18
| RE: Larry--disable EGR
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Message:
But how??
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dak-jak
Dodge Dakota
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4/14/2004
08:49:42
|  RE: Larry--disable EGR
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Message:
Yes , How ??
Do you need a 96 or newer pcm ?
Does that fit the harness ?
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IntenseDak39
*GenIII*
4/14/2004
09:17:03
| RE: Larry--disable EGR
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Message:
just remove the egr and put a block off plate over it. More than likely, you will have to build one.
6.6 Lt. Big Block, 727 TF shift kit, 452 heads, edelbrock 750 cfm, .513/.513 284/300 crower cam, comp cams springs, comp cams pushrods, 1.5 roller rockers, dp intake, mopar ignition, mopar windage tray, dual exhaust w/ 40 series flowmasters, 4.10 gears, coilover drag suspension, approx, 3500 lbs
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dak-jak
Dodge Dakota
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4/14/2004
09:24:17
| RE: Larry--disable EGR
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Message:
Then WHAT ?
It ain't that simple to maintain emission levels!!
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dak-jak
Dodge Dakota
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4/14/2004
11:30:26
| RE: Larry--disable EGR
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Any more Hex-perts
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Bob Lincoln
Dodge Dakota
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4/14/2004
12:39:09
| RE: Larry--disable EGR
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Then you fail emissions. But he doesn't care what happens to you.
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bump
Dodge Dakota
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4/14/2004
14:53:23
|  RE: Larry--disable EGR
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bump
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IntenseDak39
*GenIII*
4/14/2004
18:50:10
| RE: Larry--disable EGR
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i've removed the EGR on three different cars and never failed emissions. Ever notice that newer cars/trucks dont even have em?
All they do is put hot air into the intake manifold. If you have a properly tuned motor and a catalytic converter, you should pass emissions.
6.6 Lt. Big Block, 727 TF shift kit, 452 heads, edelbrock 750 cfm, .513/.513 284/300 crower cam, comp cams springs, comp cams pushrods, 1.5 roller rockers, dp intake, mopar ignition, mopar windage tray, dual exhaust w/ 40 series flowmasters, 4.10 gears, coilover drag suspension, approx, 3500 lbs
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J and J Auto
GenII
4/14/2004
20:00:25
| RE: Larry--disable EGR
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Message:
The EGR will only fire at certain times.
idle NO
excelleration NO
deceleration Yes
cruising sometimes if the o2 temp rises
the older 92 to 94 rarely will it throw a code the
95 has a electrical connection on the transducer
and will throw the code if just unplugged, 95
leave elec pluged in and block tube
And as Intense said 99.9% of vehicles will pass
a test with or with out, it just cools exhaust
and lowers Nox gas, a good converter will not let
this gas pass anyway most will be burned in the
converter so no worrie it may be a little high but
still within limits
Yes they stopped using it in 96 and up.
The easy way is to just loosen the tube on the
exhaust manifold and put a piece of exhaust
gasket between and block it off, Done
92 to 94 do not have the electrical connection
and will pass an emissions test with it blocked
but all you need to do is remove the block for the
test if you want.
All the EGR does is let some exhaust gas in the
intake carries less gas and cools the cyl temps
the temp is sensed by o2 than it fires the EGR
running a 180 thermo and 3923 plugs a code is rarely
seen with it pluged off on the tube this is the easyest
way to do it and leave all the rest hooked up.
When fired the IAT reads a slight increase in
temp and the MAP reads a slight drop in vac if
not code 32 will appear.
It will do the same thing with an open tube just
draw air instead of exhaust.
Checker Auto Parts America has the Niehoff brand
92 to 94 non elec $50
1995 elec type $75
this includes a calibrated transducer and valve and new
gasket.
From a performance stand point there is no diff with
it open or blocked unless its bad than you will see bad
idle and poor performance
The only reason I blocked mine was the cam and
ported heads I only had 17lbs vac at idle and if
it fired it would stall engine on me at low speed
it created a flat spot but on stock it won't
You can also just locate the end of the tube
over the exhaust manifold with a small filter
and it will pick up the hot air and fake the
system out without sending exhaust into the intake
and no code will appear
It was a dumb idea from the start I cant beleave
they still used the bull $hit system upto 95 it
did not help anything
I have many customer trucks they did not want to
spend the $50 $75 to replace so I just blocked
the tube and very few ever get the code 32 the
ones that do maybe once every 5000 miles it may
pop up
Larry
J&J Auto
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Bob Lincoln
Dodge Dakota
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4/15/2004
08:26:04
| RE: Larry--disable EGR
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Message:
So you're one of the "professionals" who risks the $25K fine. Keep it up.
The valve would not be there if it were not needed. They wouldn't spend the money to put it there if it would pass emissions without it. That's why most pre-1995 cars have it and need it to pass.
BTW, go back to school. The O2 sensor does NOT sense temperature -"the temp is sensed by o2 than it fires the EGR". An O2 sensor produces a voltage when exposed to oxygen in the exhaust, outputs a voltage between 0.1V and 0.9V to the ECM. The EGR is driven by vacuum from the transducer, which in turn is driven by the ECM with inputs from the coolant temp, MAP sensor and O2 sensor.
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IntenseDak39
*GenIII*
4/15/2004
10:13:39
| RE: Larry--disable EGR
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Message:
"The valve would not be there if it were not needed. They wouldn't spend the money to put it there if it would pass emissions without it. That's why most pre-1995 cars have it and need it to pass."
bob, you are right. They wouldnt spend the money on it if it didnt need it. That's why they got rid of them in 1996. Please let me know what the newer cars have to keep them passing since they dont have an EGR.
6.6 Lt. Big Block, 727 TF shift kit, 452 heads, edelbrock 750 cfm, .513/.513 284/300 crower cam, comp cams springs, comp cams pushrods, 1.5 roller rockers, dp intake, mopar ignition, mopar windage tray, dual exhaust w/ 40 series flowmasters, 4.10 gears, coilover drag suspension, approx, 3500 lbs
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dak-jak
Dodge Dakota
JOIN HERE
4/15/2004
10:34:34
|  RE: Larry--disable EGR
IP: Logged
Message:
Thanx again..
newer probably frig with timing to lower
exhaust temps .
the basic engine is no different..
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Bob Lincoln
Dodge Dakota
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4/15/2004
12:34:10
| RE: Larry--disable EGR
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More newer cars have multi-port fuel injection, magneto ignition, 4 valves per cylinder, variable valve timing. All of these contribute to lower emissions.
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Goon
Dodge Dakota
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4/15/2004
12:55:05
| RE: Larry--disable EGR
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Bob, I think you're an idiot.
I would listen to Larry a million times before I looked at another one of your posts. The difference between the '95 and '96 Magnum engines is only the EGR. None of that other technology you listed above, and magically, somehow, the 96's still pass emissions. Sure there may be a fine, nobody disputed that, but look at the facts of how it works, what it does, and then decide if it actually does anything, instead of blindly following the slogan that "whatever DC does, must be right." That's just being naive.
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IntenseDak39
*GenIII*
4/15/2004
12:58:44
| RE: Larry--disable EGR
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Message:
Bob, 92-95 dodge dakotas have multiport fuel injection. The newer magnums dont have variable valve timing, magneto or extra valves.
6.6 Lt. Big Block, 727 TF shift kit, 452 heads, edelbrock 750 cfm, .513/.513 284/300 crower cam, comp cams springs, comp cams pushrods, 1.5 roller rockers, dp intake, mopar ignition, mopar windage tray, dual exhaust w/ 40 series flowmasters, 4.10 gears, coilover drag suspension, approx, 3500 lbs
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Bob Lincoln
Dodge Dakota
JOIN HERE
4/15/2004
21:52:22
| RE: Larry--disable EGR
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Message:
Take with a grain of salt anything posted from someone who calls himself GOON. No one asked you to take my advice. I have worked on cars probably longer than you have been alive, and have both the hands-on knowledge as well as a degree in mechanical engineering.
I was asked a general question, and answered, generally, what has improved in engine technology that would account for not needing an EGR valve. The things I listed are developments that have helped. I did not say that the Dakotas had these improvements, and at what time. If you want to know specifically why Chrysler eliminated EGR for 96, ask them. If you read Larry's post, he agrees that it was originally needed on the cars that came with it, to pass emissions. Can it pass without it? Depends. Depends on what mods are made (and apparently he makes a lot); depends on what NOx levels are allowed in your state. He claims he illegally modified 3 cars but they still passed. I'd like to see the NOx numbers before and after. Just because a car passes doesn't mean it's not on the ragged edge. Most states have very loose standards. Example:
My 72 Dart came without catcon. It got 80-110 ppm HC at idle consistently. Limit was 1000 ppm, a ridiculously high number. The state changed the limit to 220. Still passed easily. Is that good? Consider that my 85 Daytona and my 92 both got 0-11 ppm at idle in the same test with a catcon. Is it important that these cars be 10 times cleaner? It certainly is to me, and to anyone else who wants to breathe. It means a lot to my wife, who has asthma.
Violating the letter of the law is one thing; violating the spirit also just confirms a total lack of social responsibility and a failure to acknowledge the rights of others.
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J and J Auto
GenII
4/15/2004
22:55:55
| RE: Larry--disable EGR
IP: Logged
Message:
Bob, I think you're an idiot.
DITTO
How can the computer fire the valve when on the
92 to 94 there is no electrical connection to
the transducer, 95 yes there is only to read
transducer position
Jeep also has no elec connecton to the EGR system
it a balancing act between vac and exhaust presure
As you rev the engine the vac to the transducer
increases via a blead of on the purge solonoid
goes up and down not comp controled
The transducer has a calibrated spring and uses
the exhaust presure to open the valve under
certain conditions no electrical connection on
92 to 94 how can the comp tell it anything.
You must be a 5 star mechanic just like most
around here who are lost and don't know what
they are doing or how to fix anything when you
talk to them they have no clue as to what is going
on
It took our local dodge garage 5 time in there
shop just to find a bad starter on my 94 Dak
and 7 times before they bought the truck back
because they could not find the cold run problem
I now no longer deal with them and drive 100
miles to a dealer in michigan for parts and
service on our new vehicles
03 hemi truck
03 durango
04 intrepide
I have been working on these things for about 40
years and owned my own shop for over 30 years and
have spent many hours on the phone with chrysler in detroit discusing the issues these vehicles
have.
The only reason any of my vehicles go to the
dealer is for waranty work
03 hemi had a poor idle quality flash done about
3 weeks ago do you even know about that, seams I
have more contact with the chrysler techs than
you do
Larry
J&J Auto
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J and J Auto
GenII
4/15/2004
23:10:39
| RE: Larry--disable EGR
IP: Logged
Message:
One other thing BOB
They do not emissions test in northern Wisconsin
and are exempt over 10 years in this state from
any testing at that point in time and the owner
is alowed to do anything they want to there vehicles
My stroked motor is still below any emission
levels requiered in the city of milwaukee it
will easily pass
Larry
J&J Auto
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J and J Auto
GenII
4/15/2004
23:12:40
| RE: Larry--disable EGR
IP: Logged
Message:
Are you the same chrysler 5 star mechaic that told
people on this board that a 4 stroke motor needs
no back presure
Larry
J&J Auto
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