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O2 sims?

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Old Apr 9, 2014 | 04:32 AM
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Default O2 sims?

Where can I still get O2 sims?if I can't buy them anywhere since I've read they were banned does anyone have a set they'd like to sell?

Or has anyone made them?bunch of guys on the mustamgs forums have made them for a few bucks a piece at RadioShack which I'm not opposed to doing if anyone has a shopping list and instructions as to how to construct these?
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Old Apr 9, 2014 | 09:45 AM
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Through the power of GOOGLE:
http://mkiv.com/techarticles/oxygen_...tor/index.html
or
https://www.google.com/search?q=make...m=122&ie=UTF-8
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Old Apr 10, 2014 | 03:04 AM
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Decided to go this route http://forums.corvetteforum.com/c5-t...ot-needed.html

I just put the headers on and it was a real pain in my a$$ can I do what's in the link without having to remove the x pipe or any of the exhaust?I don't know how much it differs from what's on the link but I have the Borla long tubes,of road X pipe,borla stinger cat back if it matters.
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Old Apr 10, 2014 | 10:23 PM
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You have to tune to get the most power from the headers so just get the tuner to turn the rear O2's off.
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Old Apr 13, 2014 | 06:10 AM
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Originally Posted by lionelhutz
You have to tune to get the most power from the headers so just get the tuner to turn the rear O2's off.
besides the sims I'm familiar with don't keep the light off.
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Old Apr 13, 2014 | 09:27 AM
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Originally Posted by martysauto
besides the sims I'm familiar with don't keep the light off.
If the light is on, the sims aren't working!
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Old Apr 13, 2014 | 05:04 PM
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I haven't put them sims on.

So am I to understand the non foulers on the rear o2's will not take care of the codes P1134 & P1154?
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Old Apr 13, 2014 | 05:59 PM
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I made my own sims and they worked perfectly. Light never came on. I never tried the non foulers but it seems like a much simpler solution.
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Old Apr 13, 2014 | 09:06 PM
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Check with zzperformance

http://shop.zzperformance.com/store/p/468-O2-Emulator.aspx

Lists 97-03 vette.. The one pictures looks like 04+ style so you might be able to make an harness adapter, if they don't have one with the flat 4 connector. Look in the 3800 section under electrical

I would say check with ECs and get a mail order tune... They are like $150 and will be a better option...

Last edited by RedZMonte; Apr 13, 2014 at 09:10 PM.
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Old Apr 13, 2014 | 11:56 PM
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Originally Posted by Rx7Rob
I made my own sims and they worked perfectly. Light never came on. I never tried the non foulers but it seems like a much simpler solution.
What route did you take I'm assuming the resistors?if not can you explain more about what you did?

And yea I'd love to have it tuned but not at this level yet.I can't see spending 150 now to turn off 2 ignorant codes that are nothing more than an irritation only to have to spend another 150$ to tune for heads/cam this winter.
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Old Apr 14, 2014 | 03:10 AM
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I'll never understand why a tune isn't the first mod people do, nor why such halfassery is still so rampant. Sims were cool back in 2000 and even a stock car will benefit from a tune so don't beat yourself up over doing it twice. That and if you think you're going to get away with a $150 tune after heads and cam, you're probably going to get $150 worth of tune.
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Old Apr 14, 2014 | 04:10 AM
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Originally Posted by Supercharged111
I'll never understand why a tune isn't the first mod people do, nor why such halfassery is still so rampant. Sims were cool back in 2000 and even a stock car will benefit from a tune so don't beat yourself up over doing it twice. That and if you think you're going to get away with a $150 tune after heads and cam, you're probably going to get $150 worth of tune.
Well to be honest im sure what the issue is waiting til the up coming mods to do the tune all at once but if you'd care to explain I'd love to read it.

And as for the "150$ tune" comment I'm not sure what you meant?is it OK to send off your ecm to he tuned for simple mods such as headers and intake but not for heads and cam?I'm confused.

I'm by no means trying to half *** anything I'm just not a fan of doing things twice if I don't have to.yea I'm sure they could tweak what's there and improve but is it worth my time and effort at this point without the other more involved mods?I don't think so but if I'm wrong please correct me.
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Old Apr 14, 2014 | 04:14 AM
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Corvettes aren't as notorious as other cars for having horrible factory tunes, but they're still pretty pig rich from the factory in addition to having that stupid skip shift, fans come on way too late, etc. DO NOT get a mail order tune for a cam! Get it dyno tuned for YOUR car, anything else is just somebody's WAG. Might as well not tune at all and you already know how I feel about that. Even if they offer free tweaks, you'll be miles and asspain ahead to have it tuned on the dyno. Mail order won't be able to address cold starts and driveability concerns to the extent that dyno tune can. The mail order tune will likely focus most on making WOT right and lean on the O2s to clean everything else up which is not cool, you want the smallest O2 corrections possible and you want them cutting fuel, not adding it.
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Old Apr 14, 2014 | 09:10 AM
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Originally Posted by Supercharged111
Corvettes aren't as notorious as other cars for having horrible factory tunes, but they're still pretty pig rich from the factory in addition to having that stupid skip shift, fans come on way too late, etc. DO NOT get a mail order tune for a cam! Get it dyno tuned for YOUR car, anything else is just somebody's WAG. Might as well not tune at all and you already know how I feel about that. Even if they offer free tweaks, you'll be miles and asspain ahead to have it tuned on the dyno. Mail order won't be able to address cold starts and driveability concerns to the extent that dyno tune can. The mail order tune will likely focus most on making WOT right and lean on the O2s to clean everything else up which is not cool, you want the smallest O2 corrections possible and you want them cutting fuel, not adding it.
Rich is ALWAYS the safer tune. Lean tunes will kill an engine faster than anything, a rich tune will burn fuel.
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Old Apr 14, 2014 | 09:38 AM
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Originally Posted by 3boystoys
Rich is ALWAYS the safer tune. Lean tunes will kill an engine faster than anything, a rich tune will burn fuel.
nice generic reply. there's no need to run these things at 11.XX:1 like the factory commands, you give the engine what it wants plain and simple. A $150 mail order tune won't do that.
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Old Apr 14, 2014 | 04:09 PM
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Originally Posted by Supercharged111
Corvettes aren't as notorious as other cars for having horrible factory tunes, but they're still pretty pig rich from the factory in addition to having that stupid skip shift, fans come on way too late, etc. DO NOT get a mail order tune for a cam! Get it dyno tuned for YOUR car, anything else is just somebody's WAG. Might as well not tune at all and you already know how I feel about that. Even if they offer free tweaks, you'll be miles and asspain ahead to have it tuned on the dyno. Mail order won't be able to address cold starts and driveability concerns to the extent that dyno tune can. The mail order tune will likely focus most on making WOT right and lean on the O2s to clean everything else up which is not cool, you want the smallest O2 corrections possible and you want them cutting fuel, not adding it.
You know I was honestly questioning whether or not mail order would be sufficient but figured since I was using off the shelf stuff and that since these cars have been done to death there would be no problem getting a safe tune mail order.

The closest area I know of that would have Dyno tuning is Indianapolis about 3hrs away can anyone recommend a reputable trust worthy place in the indy area to get this Dyno tuned?also what should I expect to pay for this?
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Old Apr 14, 2014 | 04:11 PM
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Was just a basic 555 timer circuit. I read through the repair manual to find the conditions that would trigger a code and made the circuit accordingly. Nothing fancy needs to be done.

Originally Posted by Mustang_Guy
What route did you take I'm assuming the resistors?if not can you explain more about what you did?

And yea I'd love to have it tuned but not at this level yet.I can't see spending 150 now to turn off 2 ignorant codes that are nothing more than an irritation only to have to spend another 150$ to tune for heads/cam this winter.
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Old Apr 14, 2014 | 04:14 PM
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Who cares when something was "cool". I only care if it works! As far as I can tell, running sims works as effectively as turning it off in the tune!

Originally Posted by Supercharged111
I'll never understand why a tune isn't the first mod people do, nor why such halfassery is still so rampant. Sims were cool back in 2000 and even a stock car will benefit from a tune so don't beat yourself up over doing it twice. That and if you think you're going to get away with a $150 tune after heads and cam, you're probably going to get $150 worth of tune.
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