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Weird A/F ratios

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Old 08-23-04, 09:45 PM
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haiO

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Weird A/F ratios

I was out driving today and my o2 started reading no higher than .55V. It also wasn't registering any change between half throttle and full (boosted) throttle. I fear I may be running dangerously lean. The only thing I've done recently is bypassed my stock boost controller in order to run safer (less boost). What's going on?
Old 08-23-04, 10:19 PM
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How old is the sensor?
Old 08-23-04, 10:35 PM
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when your running WOT it doesn't use the signal off the O2 sensor, chances are your O2 sensor is on it's way out
Old 08-23-04, 10:38 PM
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anybody else?
Old 08-23-04, 10:40 PM
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dude it's as clear as day .. chances are your O2 sensor is shot..
no one else is saying anything cause there's nothing more to say

just get a new stock O2 sensor if you don't wanna spend alot of greens
Old 08-24-04, 09:04 PM
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the problem I have is that it registers 0 change between half and WOT. What regulates fuel under WOT?
Old 08-24-04, 09:46 PM
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Originally Posted by JackoliciousLegs
the problem I have is that it registers 0 change between half and WOT. What regulates fuel under WOT?
me
Old 08-24-04, 09:47 PM
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hahahha no, seriously, it use static WOT fuel map...
Old 08-24-04, 09:50 PM
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Lol, seriously, the O2 sensor inputs should be constantly moving- even at stoich the meter needle bounces back & forth between .4 and .5v, so, an A/F gauge should be showing the same thing, albeit in a different format...

If the readings are stuck, either the sensor is bad, the gauge is bad, or you have a teeny tiny wiring problem...
Old 08-25-04, 12:02 AM
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narrowband o2 sensor should not be used to check afrs during boost.
Old 08-25-04, 12:15 AM
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I know, I just figured I'd see it go from 14.5 A/F and at least move a little when I get on it hard.
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