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Old Nov 26, 2005 | 07:08 PM
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Default Air Fuel gauges

I see vendors sell A/F gauges as kits (Gauges and sensors) for $250-300..

I see gauges for less than $50.. Why cant we use (tap into) our factory O2 sensors?

Any one doing this without causing codes? Any trick to it?

Thanks in advance
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Old Nov 26, 2005 | 07:22 PM
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You can tap into the factory sensors the problem is that they are not going to be very accurate on the $50 one. You really need a wide band sensor to do you any real good, that's the 250-300 priced ones you see. I would spend your money on a different mod unless your seriously modded.
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Old Nov 26, 2005 | 07:33 PM
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The factory sensors are narrow band sensors. They only read within a very narrow a/f window which will do you NG. A wide band sensor and gauge will read a larger range of a/f ratios which is what you likely want to do.

You need the wide band sensor and gauge. Actually, I'd really only suggest you get a WB system if you have some way of logging the data, such as with EFILIVE or HP TUNNERS. The gauge itself is pretty useless since the readings will move VERY FAST and you'll have no way of comparing them to load or rpm. So ideally you want a WB O2 sensor such as a LC1 that is tied into some form of logging software to get meaningful data from it.
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Old Nov 26, 2005 | 07:37 PM
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Originally Posted by R&D
The factory sensors are narrow band sensors. They only read within a very narrow a/f window which will do you NG. A wide band sensor and gauge will read a larger range of a/f ratios which is what you likely want to do.

You need the wide band sensor and gauge. Actually, I'd really only suggest you get a WB system if you have some way of logging the data, such as with EFILIVE or HP TUNNERS. The gauge itself is pretty useless since the readings will move VERY FAST and you'll have no way of comparing them to load or rpm. So ideally you want a WB O2 sensor such as a LC1 that is tied into some form of logging software to get meaningful data from it.
Well an air/fuel gauge will be a nice dash display until either A.) the motor stays in an overly rich condition. Or B.) the motor stays in an overly lean condition. So essentially it's a glorified idiot light unless used with a wideband (which is how I use mine).
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Old Nov 26, 2005 | 07:40 PM
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as mentioned earlier, factory sensors are usless for WOT monitoring. The PCM stops taking data from the factory oxygen sensors when your foot is to the floor.
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Old Nov 26, 2005 | 08:11 PM
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Thanks for the info gents. By the way, who has decent prices on the kits?
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