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blocking rear o2 sensors

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Old Oct 30, 2008 | 08:44 PM
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GM WORLD CLASS's Avatar
GM WORLD CLASS
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Default blocking rear o2 sensors
im puttin headers, i need the scoop on o2 sims. also will i need a tune if im runnin straight out of the pipes with little or no back pressure?
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Old Oct 30, 2008 | 09:18 PM
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o2 sims are very easy. all you do is plug it in and go. all the ones ive ever used were very good and never had any probs. as far as the tune no it is not a must but as with any mod to the engine a tune may get you a few extra HP with the exhaust mod but i dont think i would go running for a tune just for that. wait for more stuff. no need to tune for the o2 sims either.
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Old Nov 1, 2008 | 11:47 AM
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You may want to check with a wideband if your running straight out the headers or no muffler, that your air fuel ratio is ok
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Old Nov 1, 2008 | 03:34 PM
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where can you still find sims? i need some for a ford
i was working on.
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Old Nov 1, 2008 | 03:44 PM
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Originally Posted by GM WORLD CLASS
im puttin headers, i need the scoop on o2 sims. also will i need a tune if im runnin straight out of the pipes with little or no back pressure?
Contact me and I will let you know how you can do it with the MDI
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Old Nov 1, 2008 | 04:03 PM
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O2 sims have pretty much been banned AFAIK http://www.usdoj.gov/opa/pr/2007/July/07_enrd_490.html
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