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ORIGINAL: moosestang
wouldn't the ecu want a wide band then?
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i was under the assumption that the stock o2 is a wideband on the primary side.[8D] but even if it was, it would still not be a true wideband compared to the aftermarket types.
but yes, i've used the obd2 readouts the see the before/after voltage readings on the primary o2 (wideband type). But as i said before, the a/f gauge is not an accurate tool when u're dealing and tuning for F/I since the band is so narrow on the stock o2. So why bother? When u're logging with the stock o2, lets say it the limit of richness on the stock sensor is 11.5:1. In reality, you may be running richer than that, ie. 10:1, but u will not know b/c it cant read that low. On that subject, whats the a/f range for the stock o2 anyways?