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erratic wideband readings

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Old Aug 16, 2014 | 03:08 PM
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Default erratic wideband readings

installed a stage 1 sos sc kit couple weeks ago and everything went well and working fine. until late today after a 200+ mile drive. was in traffic intown and was watching the wideband gage get erratic. normally at idle it usually indicated around 15. now it is at 15 then drops as low as 11 then goes as lean as 16 to 17. then it will go back to 15. got home and smelled gas real strong. looked for any leaks and couldn't find any. wondering if this could be a induction leak or what. when moving down the road at a steady throttle setting the gage would be steady then go rich then lean then back to normal. has anyone ever experience this or have any thoughts on this? going to call sos Monday and pick their brain to see if they can shed some light on this.
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Old Aug 17, 2014 | 08:52 AM
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It sounds as though the sensor may be going bad. Spend $75 and get a new sensor and see if that fixes things.
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Old Aug 17, 2014 | 11:41 AM
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wideband sensor or the oem sensors? wideband is new but that doesn't mean that it can't be bad. now its just going rich at idle then back to 14.9 and not as often since I tighten the belt.
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Old Aug 18, 2014 | 04:55 PM
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Change the wideband to rule it out. Also, not sure how your WB works but my Innovate needs calibrated in the beginning or you could get erratic readings.
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Old Aug 18, 2014 | 06:12 PM
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Sounds like dead sensor to me too.
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Old Aug 19, 2014 | 09:27 AM
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Originally Posted by YELLOW JACKET
wideband sensor or the oem sensors? wideband is new but that doesn't mean that it can't be bad. now its just going rich at idle then back to 14.9 and not as often since I tighten the belt.
Considering you smelled gas, that would be an indicator, and your wideband is new, so it sounds like your wideband is picking up an accurate poor running of your engine, so my first guess would be a bad OEM primary sensor. However it could just be something in your tune went awry as well and its not a sensor at all. I suppose your running a full ems so no cel right?
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Old Aug 19, 2014 | 12:44 PM
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got it straighten out. amazing what a loose belt can do. its a stage 1 sos kit. aem wideband. everything bought new.
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