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A/F quest. lean shut off switch

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Old Sep 11, 2008 | 10:35 AM
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Default A/F quest. lean shut off switch

ok, well i have the dynotune lean a/f shut off switch, and i ran it into my o2 sensor...well are these accurate on your a/f because my car at wot is at 9.8,and when its at idle im at around 7.4, im pretty sure my car isnt running that rich...is there something i have to do to set it up correctly, when i installed it?? i do plan having my friend hook up hp tuners on its, and seeing if he can check my a/f, but i thought id ask you guys first,thanks!!!
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Old Sep 11, 2008 | 11:16 AM
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Ray@Nitrous Outlet
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are you using a wideband or the OEM narrow band sensors?
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Old Sep 11, 2008 | 11:17 AM
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yeah im just using the bosch o2 sensors... you think thats my problem??
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Old Sep 11, 2008 | 11:20 AM
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A wideband is more accurate than the narrow band sensors for nitrous tuning purposes.....not sure if that is the issue, as I am do not have a full tech base for the Dynotune A/F switch....try sending them a PM or calling them . Dan or Dean will be happy to help
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Old Sep 11, 2008 | 11:23 AM
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no you just need to program the lean cutoff to a narrowband o2, it will read in voltage not in a/f ratio. read you dynotune manual and if you dont have it there is one on their web pages. The narrow band is less accurate than a wideband, but still works!
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Old Sep 11, 2008 | 11:41 AM
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ok thanks a lot man, im sure that my problem because i just installed it and that was it, i appreciate all the feedback,thanks guys!!
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Old Sep 11, 2008 | 08:23 PM
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Originally Posted by 00cls1camaross
no you just need to program the lean cutoff to a narrowband o2, it will read in voltage not in a/f ratio. read you dynotune manual and if you dont have it there is one on their web pages. The narrow band is less accurate than a wideband, but still works!
good info, I didn't know they could be used with the stock narrow band O2.

I was the lucky recipient of one of the dynotune switches that was given away but haven't installed it yet since I don't yet have a wide band.
I plan to buy one soon but would like to use it in the mean time
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Old Sep 12, 2008 | 01:40 AM
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yeah i just installed mine and it really kinda sucks without a wideband,so im gonna buy a wideband to go with it...
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