Who has a midpipe without a cell
08-30-2006, 01:47 PM
#28
Merchant Of Pace
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Originally Posted by peterisurhero
doubt it.... maybe it will after a while. u should juss disconnect your negative battery.
08-30-2006, 05:08 PM
#29
Rally Car Racer
Originally Posted by dtorre
hmm actually purchased Mighty Red's midpipe....may be a little loud with an aftermarket exhaust but as long as you stay light on the throttle its not too loud. Love the flames that come with it 
....as far as emissions go, not to worried can swap it off with my cat in no time, took 30 minutes to swap it off the other day to take my car in to the dealership to get my visor fixed =). Smell, don't really notice it unless I stand behind the car, then it smells like i've been driving a gokart all day =P
....as far as emissions go, not to worried can swap it off with my cat in no time, took 30 minutes to swap it off the other day to take my car in to the dealership to get my visor fixed =). Smell, don't really notice it unless I stand behind the car, then it smells like i've been driving a gokart all day =PBut, you nailed it exactly with the "go cart" smell. That was the primary reason I sold it. The smell of chainsaws, motorbikes, and snowmobiles just wasn't for me.
Glad to hear you're enjoying it dtorre - especially the fire part!
08-30-2006, 10:32 PM
#30
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Originally Posted by peterisurhero
i read about the cai giving the CEL light.
what is kinda funny is that i went to a dealership and asked them if the mazdaspeed cai will set the CEL light off and they said it wont. So i dotn get it, the AEM and mazdaspeed cai's are indentical are tehy not?? only difference is the name. thnx
08-31-2006, 09:23 AM
#31
Running Midpipe for a while. No CEL. No Odor. I read a thread, some chick, passed with Midpipe. I have stock exhaust. Best Mod that I have bought. After ECU full reset will help clean up the smell. I think it has adjusted enough after reset to calibrate for emmisions. I have the breather on the Oil stem. So those emissions will not go through the tail pipe. I think I can pass. Just speculation.
08-31-2006, 10:20 AM
#33
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Originally Posted by mysql101
heh. How do you think the ECU reset would magically clean up your exhaust? No cat means no cat.
Having no cat means your HC's will go through the roof. There are some areas that on newer cars they do no visual, no sniffer, only hook a scan tool up to the car and check for any codes. No codes = pass. So it is technically possible to pass without a cat in those areas if you have no CEL.
08-31-2006, 02:08 PM
#34
Originally Posted by mysql101
heh. How do you think the ECU reset would magically clean up your exhaust? No cat means no cat.
My reasoning for the midpipe was for trouble shooting purposes. I got my answer, which was a bad CAT. I am in no hurry to put a good CAT back on. No way.
08-31-2006, 02:18 PM
#35
The car can do nothing to lower or "fix" your exhaust emissions if the cat is missing. It is burning fuel, no matter what your car thinks or does, by simply running, your can WILL emit more hydrocarbons and carbon monoxide than it would with a cat.
The ECU has is a list of checks to perform. If you hit all the checks (specific time at different rpm or speed ranges) and the sensor detects a malfunctioning cat, you'll get the CEL.
I used to get a CEL within 10-15 miles when I was catless. I'm currently running with a turbo and my car doesn't get a CEL, and it's been several hundred miles.
I can't explain the lack of a CEL, but I can guarantee you that the car's ECU is unable to fix the problem of a missing cat. In fact, if the ECU (as you claim) is aware of the missing cat and can correct it, it would also stand to reason that the car would light up the CEL for emissions hardware malfunctioning.
The ECU has is a list of checks to perform. If you hit all the checks (specific time at different rpm or speed ranges) and the sensor detects a malfunctioning cat, you'll get the CEL.
I used to get a CEL within 10-15 miles when I was catless. I'm currently running with a turbo and my car doesn't get a CEL, and it's been several hundred miles.
I can't explain the lack of a CEL, but I can guarantee you that the car's ECU is unable to fix the problem of a missing cat. In fact, if the ECU (as you claim) is aware of the missing cat and can correct it, it would also stand to reason that the car would light up the CEL for emissions hardware malfunctioning.
08-31-2006, 02:51 PM
#37
The CAT has two stages. There is a empty gap between them. The O2 plugs into that gap. If the back section is damaged, there is no way for the O2 to know that. That is why my car had 80 HP. The dealer will not pull it unless a CEL. I wonder why they put it there instead of behind the second stage. The first stage is very small, in comparision. You can find some images on the forum. So guy found a way to gut just the rear section, which is crazy to imagine. So I guess my question is what does the O2 look for besides temp? Reason I am asking, is because of the small stage before it hits the O2. It goes through a fraction of the CAT before sending its readings.
09-01-2006, 08:26 PM
#38
shovin' into overdrive...
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quick question all u guys with the midpipe...what did u use to get the O2 sensor off? what size socket is it? I looked in the mazda workshop manual and it takes a special mazda tool that doesnt have a specific size...Im new to all this DIY...
12-08-2006, 11:13 AM
#40
There are O2 sensor sockets available at just about any automotive parts store.
A person can also use a combination wrench to loosen the sensor from the pipe.
I was running a custom midpipe with the extender mod built in. No CEL after 700 miles.
Installed the Racing Beat 3" pipe and at 31 miles the CEL came on for it.
Will be getting the extender because that was the only difference between the two pipes.
A person can also use a combination wrench to loosen the sensor from the pipe.
I was running a custom midpipe with the extender mod built in. No CEL after 700 miles.
Installed the Racing Beat 3" pipe and at 31 miles the CEL came on for it.
Will be getting the extender because that was the only difference between the two pipes.
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