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CDAWG
Dodge Dakota
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7/15/2003
20:22:34
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 Subject: O2 sim install/cat removal?
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Message:
I really appreciate this board for so much help when you really need it. I've got an O2 sim, is the plug screwed into the pipe and will it just plug up or does it need to be wired? Also heard it's not worth removing the cat without alot of other mods, TB, MP1, headers, cause the back pressure is good for the avg engine. Should I wait till headers to cut the cat or will it help now. (kidding)It's not like I need more power, I just got a ticket on the way to work for a 65 in a 35, but he dropped it to 55, from a stoplight, stopped he caught me speeding in just 1 1/2 blocks on US 1. I told him I just hit the pedal to the floor cause some jack a was swerving into me, and I didn't feel like gettin hit again.
Anyway please help, I live in FL, no emissions testing, I know it's a federal law about the the cat removal though.
Thanks
99' 5.2 180 T stat, K&N FIPK gen 2, Flowmaster duals, 60 TA's, Shaved grill, roll pan, solar yellow with pearl gold flames
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jake
Dodge Dakota
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7/15/2003
20:39:43
|  RE: O2 sim install/cat removal?
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ur gonna hate me on this one...all u have to do is remove the post cat sensor out of the pipe and zip tie it to the frame..thats it. no kat box needed. mine has been like that for years now..no problems
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03graphrt
Dodge Dakota
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7/15/2003
20:47:22
| RE: O2 sim install/cat removal?
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Message:
so jake i have a 03 r/t and your saying to remove my precats i dont need the cat boxes???how do i install them if i do need them.thanks.
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Beekota
Dodge Dakota
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7/15/2003
21:06:57
| RE: O2 sim install/cat removal?
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I got the 02 sims from KRC and their still in my tool box,Like you I live in Florida,Im going to have the Y-pipe made for my 4.7 and save my cat's just in case we go back to inspections,As you know Gov Bush is thinking of inspections to get the Federal Dollars.Just save your Cat's!!!!
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jake
Dodge Dakota
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7/15/2003
21:10:09
| RE: O2 sim install/cat removal?
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Message:
for an 03..u need the box i am told. because of those "precats" for us 98-00 boys we dont.
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Mr.H
Dodge Dakota
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7/16/2003
13:47:18
|  RE: O2 sim install/cat removal?
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Message:
I have an 01' 4.7 5 spd. with the 3 cats. Do I need the 02 simm's? What exactly happens when the post 02 sensors go out? Is it just a light that comes on?
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jake
Dodge Dakota
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7/16/2003
21:31:54
| RE: O2 sim install/cat removal?
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Message:
im not sure on the 4.7 either. the 97-00 daks with a 318/360 (all i know of) have 4 sensors. 1 in each downpipe and a pre cat and post cat. all the post cat sensor reads is how efficient the cat is...lookin for clean air in english. so taking the sensor completely out lets that sensor get clean air...thus sayin its ok!!
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CDAWG
Dodge Dakota
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7/17/2003
19:06:09
|  RE: O2 sim install/cat removal?
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Message:
Makes sense Jake, I think I'll try it, can't hurt. I've got the O2 sim ready to return, so no problems. I'm still not convinced removing the cat converter is going to give me more power, I've heard the backpressure is actually good for the avg engine without rockers, intake, TB and headers. What do U think?
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jake
Dodge Dakota
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7/17/2003
21:55:54
| RE: O2 sim install/cat removal?
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Message:
you WILL gain about 8-10 rwhp doing so. it will also increase the exhaust sound, which is why most do it. but when u gain, u have to lose. prolly lose a lil bit of off the line tq. i will tell you i run open exhaust at the track and it gives me .1 and 1mph gain. on the dyno it was 9rwhp and 4rwtq. but remember thats is PEAK numbers..not off the line
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adam
Dodge Dakota
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7/18/2003
18:00:10
| RE: O2 sim install/cat removal?
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Message:
will the check engine light not come on if the o2 sensors are zip tied to the frame?
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jake
Dodge Dakota
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7/18/2003
18:54:30
| RE: O2 sim install/cat removal?
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Message:
mine isnt on. it only work with the POST sensor though. all the others need to read or need a cat box....the 01 up ones.
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02r/t
Dodge Dakota
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7/18/2003
20:10:12
| RE: O2 sim install/cat removal?
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i have a 2002 r/t,so i would need the simulators?i couldnt jsut do the zip tie thing?
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jake
Dodge Dakota
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7/18/2003
20:13:00
| RE: O2 sim install/cat removal?
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i would think u could..
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02r/t
Dodge Dakota
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7/19/2003
03:36:33
|  RE: O2 sim install/cat removal?
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i dont wanna sound stupid or anything,but how exactly does that work?why doesnt the light come on in the dash cluster?i appreciate your help,and i cant wait to try it.
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jake
Dodge Dakota
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7/19/2003
09:15:39
| RE: O2 sim install/cat removal?
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read the 7th post down..from me
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02r/t
Dodge Dakota
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7/19/2003
15:05:13
| RE: O2 sim install/cat removal?
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Message:
my exhaust came with 3 cats,and the cats in each down pipe are the ones with the sensors.there wasnt another sensor in front of or behind the third cat,i had it removed a few weeks ago,got true duals put on.so am i sh#t out of luck as far as the two sensors in the precats go?
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jake
Dodge Dakota
JOIN HERE
7/19/2003
21:53:06
| RE: O2 sim install/cat removal?
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Message:
no..u can get a duel katbox which will eliminate those.
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