O2 simulators? What do YOU use? Mine doesn't work

[boble86]

no i had to pass emissions and you cant with this

 

[r37ribution]

oooooh ok, yeah I'll take it!

How did you bypass the rear O2? a chip? an MIL eliminator that doesn't require to be connected to the rear O2? If you used an eliminator what brand? I'm hoping your truck is a 4.0L OHV right? I'm guessing the '93 didn't have a rear O2 sensor...

 

[r37ribution]

How much do you want for it? And for shipping? I'd like to have it ASAP! thanks.

 

[jimbo74]

just buy a new cat... heck buy a freeflow one if you really wnat to... the stock explroer ones are not the most restrictive part of the system, the explorers stock exhuast system is actually pretty efficient.....

 

[r37ribution]

I can't, I just can't it sounds puuuuuuuuurrrrrfect just the way it is with the flowmaster D40.

 

[jimbo74]

ok you cant because it sounds perfect.... obviously the perfect sound is more important than the environment, its the few people that break the laws that make it soo much harder for everyone else to get by the legal way...

 

[ryf]

there are states where emmissions aren't checked and inspections aren't done, such as Ohio which has no inspections at all, and sniffers only in major citys and suburbs. When I lived in Coastal NC, yearly inspection which covered safety systems, no sniffer, bigger cities had them, so we would put 3+" exhaust on a truck and split the tubing on top of a cat, drive a 3" tube through a flared end, and weld it all up and you had a cat that looked there, no turbulence and no cat.... now honestly that was too much work, but it worked.

I agree you should follow the laws for where you live, and because the backpressure does help torque for this vehicle, you might as well leave in the cat... ALOT of people won't believe leaving the CAT in is better, I didnt, and alot of people will try it anyway, I did, and seeing as I am not a tree hugger, if you wana cut it off, go for it...

If you wana hug trees.... why not bug the racing circuits, they just drive around in circles poluting your enviroment... at least I'm driving to work and paying taxes supporting the unemployed, prisoners, and anyone else on state aid. or support the death penalty so less people are helping pollute your enviroment...

Btw, tree huggers... I see your driving the same fuel wasting SUV I am... so its not like you REALLY care, you just want a soap box to stand on. I'm not trying to flame anyone at all... but if you drive an SUV, your as much part of the problem wasting natural resources... so if you cared, you would either not own a car, and only ride public transport, or own a hybrid or at least a more efficient car... My friends 00 impala sedan (not my LS) got on a BAD day 25MPG and on freeways/road trips hit 30mpg bone stock... so I would say, this argument isn't really anything more than pots calling kettles black, since we are a collection of fuel wasting people, which is a non-recoverable natural resource, as we all know.. so lets play nice and keep the tree hugging out of the conversation... K?

 

[Doug904]

Hey Doug,
I completely redid my EGR system and I'm still getting an intermit rough idle can you eliminate all EGR sensors in addition to the Rear O2 sensor if I order a chip from you? Hell what other emissions can I get rid of? Might as well take 'em all off, their just going to cause continued problems on my truck with almost 193,000 miles on it.

Yes sir I can turn off both the EGR and the Rear O2's and you won't have to buy another set of MIL's.

Thanks, Doug

 

[jimbo74]

there are states where emmissions aren't checked and inspections aren't done, such as Ohio which has no inspections at all, and sniffers only in major citys and suburbs. When I lived in Coastal NC, yearly inspection which covered safety systems, no sniffer, bigger cities had them, so we would put 3+" exhaust on a truck and split the tubing on top of a cat, drive a 3" tube through a flared end, and weld it all up and you had a cat that looked there, no turbulence and no cat.... now honestly that was too much work, but it worked.

I agree you should follow the laws for where you live, and because the backpressure does help torque for this vehicle, you might as well leave in the cat... ALOT of people won't believe leaving the CAT in is better, I didnt, and alot of people will try it anyway, I did, and seeing as I am not a tree hugger, if you wana cut it off, go for it...

If you wana hug trees.... why not bug the racing circuits, they just drive around in circles poluting your enviroment... at least I'm driving to work and paying taxes supporting the unemployed, prisoners, and anyone else on state aid. or support the death penalty so less people are helping pollute your enviroment...

Btw, tree huggers... I see your driving the same fuel wasting SUV I am... so its not like you REALLY care, you just want a soap box to stand on. I'm not trying to flame anyone at all... but if you drive an SUV, your as much part of the problem wasting natural resources... so if you cared, you would either not own a car, and only ride public transport, or own a hybrid or at least a more efficient car... My friends 00 impala sedan (not my LS) got on a BAD day 25MPG and on freeways/road trips hit 30mpg bone stock... so I would say, this argument isn't really anything more than pots calling kettles black, since we are a collection of fuel wasting people, which is a non-recoverable natural resource, as we all know.. so lets play nice and keep the tree hugging out of the conversation... K?

so what you are saying is because a certain area doesnt have smog inspections, its ok to vilate federal law correct? yeah thats a smart attitude yet again, i am amazed with human nature, and how smart some people are......

 

[r37ribution]

So I belive your trying to say we should all reinstall our cats so everyone in the USA can live 1 second longer? heh.

thanks Doug will send paypal payment ASAP.

Oh and Michigan has no emissions testing at all btw...

 

[ryf]

please see what I read, the excuse that people are afraid for the enviroment is not a reasonable argument here.... I don't think I said the law should be disobeyed, in fact I supported having it in as it is neccessary for backpressure, which I tried, in defiance of the law... so if you wana read it again... I DID state that my state doesn't inspect my vehicle nor sniff check, which unless I get caught for excessive exhaust noise, it would be almost impossible for it to be an issue. I DID state "You should follow the laws for where you live" and I admit, like everyone who ever destroyed a penny at a penny crusher thing at disney land, Canada, or any theme park or place that has one, has broken a law or two, at points in my life i did break MANY laws, most were far more dangerous for me and others than these trivial things... so while I look the other way because you didn't pay state taxes on every single dime of interstate and internet purchases (which most states require now), you can remember we all break rules somewhere, somehow, sometimes without even knowing... WHO CARES? its a federal law to smoke and drink underage... I can't think of many people who didn't break one of these at least twice... and we still dont care!!

if I want to break a law to get a better 0-60, let me worry about it, I should probably worry about the speeding ticket and car insurance and my and others safety more than anything.

I am not speaking in this thread again on this, if we want to continue a tree hugger argument we should start a new thread, in the right forum, PM me when you do, we could gladly argue for fun.

 

[r37ribution]

well said ryf.

Besides I actually did look into getting another cat before I gutted mine, I saw that they were $250-$500 for a stocker. If I went the aftermarket route I would have to wait days or weeks and, again, pay to replace something that restricts my motor.

Gutting my cat has actually caused me more headaches and I wish I hadn't of done it in the first place. It has caused me terrible CEL issues since the MIL eliminators do not seem to work. I'm also having repeated EGR issues every few thousand miles. I seems that every oil change requires EGR repair. So I ordered the X-Calibrator from Doug and asked that he disable all these sensors. Hopefully I can kill 2 birds with one stone.

Now I understand that you all say that back pressure is good for our motors, but my motor seems to perform better without the cat. I also understand that when you do something to anything that you may think it has made it better, that you may even lie to yourself or convince yourself it does make it better even tho it didn't or possibly made it worse. Well this could possibly be me! Heck, I have been having EGR issues a lot lately and maybe the EGR system has just been performing better than it usualy does and is giving me a lil better performance because of that.

I honestly thought my cat was clogged before I gutted it so I guess I'm kinda innocent? heh. It ended up not even being the cause of my problem but with 192,000 miles it sure as hell coulda been clogged.

All I know is I think it works better and it sounds cool, lol.

 

[huskyfan23]

Buy a high-flow direct-fit on eBay. Cheaper than stock and less restrictive. If you had a first gen you wouldn't have these problems.

Blah, blah, blah. Everyone can go on about the environment. One word sums up how much the US cares about the environment, Kyoto.

 

[monkeydude3]

I have a 1994 XL 4.0L OHV 5 speed 2wd. At one point I had no exhaust on my explorer after the cats, and it had almost no back pressure. Sounded sweet! It SEEMED pretty decent on the TOP END, but the low end torque was pure garbage, bogged really easy. From personal experience and knowledge, these engines love back pressure. That's why the only mod to my exhaust is the muffler. Cherry bomb turbo II from autozone, $20. Sounds good and still performs normal, with MAYBE an extra HP or two?? I really don't care since it's a truck and not meant for speed... Oh yeah and I drip clean water from my tail pipe and passed emissions with flying colors.

George


(I've now given my two cents)

 

[r37ribution]

Yeah whats the deal with the water coming out the exhaust? Is this a good thing? Also I have heard that if your vehicle continues to puff out fumes/mist or whatever after it has been warmed up this is a bad thing? Is that true?

 

[TheRookie]

*sigh* NO engine loves or needs backpressure. Backpressure is the enemy. What you do want and need is flow. The 2 are often confused. I have done about 20 write ups on the differences on this board alone. Do a search for like my name and backpressure and flow. Hopefully you will learn about the differences as I really dont feel like typing it all again.

 

[r37ribution]

...I DID state "You should follow the laws for where you live"...

I might not even be breaking any laws...I just talked to a buddy of mine who is pretty good with cars and emissions laws. He said Federal law (with the exception of Cali) states that vehicles are only required to pass emissions testing up to 100,000 miles and any non-maintenance emissions part is to be covered under dealer warranty up to 100,000 miles. After your vehicle has reached 100,000 miles they just write you off when you go in for testing. California is the exception, all vehicles manufactured after 1982 are required to meet OEM emissions specs for that particular year, make, and model of the vehicle.

 

[ryf]

therookie, I agreed with you on the frontside, but my experience caused me to put it back in... and it is better for me now, so I leave it... now if I had a chip or the rest of the engine built up, it might be a different issue, as of right now I still run the stocker intake, so it may be a limitation of the rest of my system...

I will admit all of my other vehicles have liked the nocat mod... it was a suprise to me

r37ribution : please don't be upset if I don't respond! shoot me a Pm or start a new thread, I will gladly discuss that with you!

 

[r37ribution]

*sigh* NO engine loves or needs backpressure. Backpressure is the enemy. What you do want and need is flow. The 2 are often confused. I have done about 20 write ups on the differences on this board alone. Do a search for like my name and backpressure and flow. Hopefully you will learn about the differences as I really dont feel like typing it all again.

TheRookie - Thank you! you have finally made sense to me what I have always thought was true, except every car buff always explained that back pressure was good for a motor so I doubted what I thought was the truth. I now understand how exhaust flow works and how back pressure is something completely different and bad for our motors.

While what I'm about to say may not be what your goal was, the fact remains: I won't be putting a cat back in my truck.

:edit: I already got a deal for a test pipe going with boble86

 

[r37ribution]

r37ribution : please don't be upset if I don't respond! shoot me a Pm or start a new thread, I will gladly discuss that with you!

Yer good dude, I remembered what you said about not posting on this again. Althought it is kinda related to the thread topic...