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Home Made 02 sims?

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Old Mar 8, 2006 | 09:49 AM
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Default Home Made 02 sims?

couldn't find anything on the search or google. Can you cheaply and effectively make your own 02 sims? Like the $1 resistors used for !cags and IAT mod etc?
1 I'm cheap!
2 I like to make **** myself, if I can
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Old Mar 8, 2006 | 10:02 AM
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Buy one, get out the multimeter and test it, make your own, see if they work, sell the one you bought.

If it was me, i would just have the codes tuned out (for everything). MTI did all my codes for $75 and that's still cheaper than buying O2 sims.
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Old Mar 8, 2006 | 10:07 AM
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electronicly? no.
but someone here posted about something i never heard about.... a mechanical O2 sim... you could try that at home.
thread is here: https://ls1tech.com/forums/generation-iii-external-engine/465337-has-anyone-ever-tried-mechanical-o2-fix-instead-sims.html
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Old Mar 8, 2006 | 10:12 AM
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Originally Posted by MrDude_1
electronicly? no.
but someone here posted about something i never heard about.... a mechanical O2 sim... you could try that at home.
thread is here: https://ls1tech.com/forums/showthread.php?t=465337
read that thread, not really interested in that route.
Why is not electronically possible? What's so special about the ones Casper etc sell?
Not getting a tune yet, when the time comes I'll just edit them out. But in the meantime..
Plus, like I said, I just like to make **** myself.
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Old Mar 8, 2006 | 10:16 AM
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Originally Posted by 30th TA 0219
read that thread, not really interested in that route.
Why is not electronically possible? What's so special about the ones Casper etc sell?
Not getting a tune yet, when the time comes I'll just edit them out. But in the meantime..
Plus, like I said, I just like to make **** myself.
well, you COULD make it, if you know electronics well enough.

reason i said no was that its not as simple as a resistor.

you need to send out a pesudo signal for the O2 signal wire.. otherwise the PCM thinks the O2 is dead...
for the heating element pins, you could fake that with a resistor.

i would think a 555 timer circut of some sort would be close enough for the signal.. if im right, you could make one really cheap.. and then put it in a water tight case or something..
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Old Mar 8, 2006 | 10:16 AM
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I would think if it was as easy as the !CAGs someone would have figured it out and made it pretty damned popular by now...
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Old Mar 8, 2006 | 10:18 AM
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here ya go..
right after i posted, i did a google search for "o2 simulator circuit 555"
this came up near the top... looks like what you want:

http://www.mkiv.com/techarticles/oxy...sor_simulator/
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Old Mar 8, 2006 | 10:37 AM
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Originally Posted by MrDude_1
here ya go..
right after i posted, i did a google search for "o2 simulator circuit 555"
this came up near the top... looks like what you want:

http://www.mkiv.com/techarticles/oxy...sor_simulator/
cool deal. Don't even know what I'm going to do right now. Might just wait and do the exhaust and cam at the same time and delete the 02s with a tune. Still trying to decide if I want to do everything at once, or in 'stages'
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Old Mar 8, 2006 | 11:00 AM
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i would still delete them in the tune.. not with a device.

but if you want to tinker, you can make it, and while you dont need it, test it out.

id make one with a old O2sensor plug, so it just plugs in...
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Old Mar 8, 2006 | 12:05 PM
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my buddy bought one from o2simulator.com, it was like $35 and still had no plug, had to be spliced. This set-up seems like it would be kind of bulky. I'll prolly just wait and have them deleted. But, who knows, maybe I'll get bored one day.
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Old Mar 8, 2006 | 12:08 PM
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I made some for a friend and it was fine
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Old Mar 8, 2006 | 12:09 PM
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Originally Posted by DansRedz28
I made some for a friend and it was fine
so, please explain. What did you use? How much? How big? Inquiring minds want to know!
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