dummy o2 sensor
Post Fiend
Joined: Jun 2002
Posts: 13,873
Likes: 3
From: Atlanta GA
O2 sensors are all basically the same, heated and non-heated, 18 mm. threads, almost all the same value ranges. I imagine a dummy sensor from a Mustang would work, might have to splice the harness instead of using the connector. If that is the case, I would go to a junkyard and grab enough harness material to make a custom cable without cutting my own OEM harness.
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New User
Joined: May 2004
Posts: 21
Likes: 0
I know
yeah I know it's illegal, but they don't seem to mind here in small town,KY. I figure one more gutted cat won't hurt nothing. I did it on my 94 F-150 5.0L, Ijust want something louder on my truck(2000 F-150,5.4L). I ve messed with all kinds of setups on it and I can't get it any louder. I have Borla muffler, dual exhaust(not true duals) on my truck. I'm thinking of just running true duals H-pipe without a muffler, from the cats back and leaving the cats alone. I don't want something obnoxiously(sp) loud, but I wnat to hear it and I want a good tone. I want to either to that or gut the cats and keep the Borla on there. I'm not bad person for gutting the cats, just want a louder sound, ya know, hope ya understand. Thanks. Any suggestions would be appreciated.
Junior User
Joined: Jan 2002
Posts: 73
Likes: 0
From: on a dirt road
empty cats
You wil definatly get more sound by gutting your cats 
, I emptied mine out last week on my 97 5.4 , gave it more of deep rumble 
I have a 50 series flowmaster muffler with dual pipes out the back. sounds good I think
, I emptied mine out last week on my 97 5.4 , gave it more of deep rumble I have a 50 series flowmaster muffler with dual pipes out the back. sounds good I think
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New User
Joined: May 2004
Posts: 21
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1ton
1ton,
did you do anythinG with your O2 SENSOR, HOW IS YOUR BOTTOM END POWER SINCE YOU'VE DONE THAT? THANKS.
did you do anythinG with your O2 SENSOR, HOW IS YOUR BOTTOM END POWER SINCE YOU'VE DONE THAT? THANKS.
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Postmaster
Joined: Oct 2009
Posts: 3,432
Likes: 7
The best way around it is running a tuner, which leaves the sensors untouched and working, but just ignores them. To be honest though, really why mess with it. The cats really don't hurt performance much, the engines cam, timing, and fuel curve is all designed around them being present, and real world tests and studies have shown that the difference between running stock cats and no cats can be as little as a 5 hp increase at its peak, which would only be noticed at high RPM, if you can even tell. About the only thing that removing them will do for you is more sound. Your economy will be pretty much unchanged, and probably worse.
If the cats are plugged or failed, thats and indication that you have another problem. A problem that is robbing power and economy. If the cats are plugged, then you would need to do something about it, and your solution is up to you, but I don't see a point in messing with otherwise functional cats. I don't see you stripping off your evap or EGR systems. If its not broke, don't fix it, especially not if fixing it means breaking it.
If the cats are plugged or failed, thats and indication that you have another problem. A problem that is robbing power and economy. If the cats are plugged, then you would need to do something about it, and your solution is up to you, but I don't see a point in messing with otherwise functional cats. I don't see you stripping off your evap or EGR systems. If its not broke, don't fix it, especially not if fixing it means breaking it.
Postmaster
Joined: Apr 2003
Posts: 2,703
Likes: 4
From: Harrisburg, NE
The best way around it is running a tuner, which leaves the sensors untouched and working, but just ignores them. To be honest though, really why mess with it. The cats really don't hurt performance much, the engines cam, timing, and fuel curve is all designed around them being present, and real world tests and studies have shown that the difference between running stock cats and no cats can be as little as a 5 hp increase at its peak, which would only be noticed at high RPM, if you can even tell. About the only thing that removing them will do for you is more sound. Your economy will be pretty much unchanged, and probably worse.
If the cats are plugged or failed, thats and indication that you have another problem. A problem that is robbing power and economy. If the cats are plugged, then you would need to do something about it, and your solution is up to you, but I don't see a point in messing with otherwise functional cats. I don't see you stripping off your evap or EGR systems. If its not broke, don't fix it, especially not if fixing it means breaking it.
If the cats are plugged or failed, thats and indication that you have another problem. A problem that is robbing power and economy. If the cats are plugged, then you would need to do something about it, and your solution is up to you, but I don't see a point in messing with otherwise functional cats. I don't see you stripping off your evap or EGR systems. If its not broke, don't fix it, especially not if fixing it means breaking it.
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