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Installed AEM eugo wideband afr jumping around.

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Old 03-13-2011, 04:00 PM
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Default Installed AEM eugo wideband afr jumping around.

Installed it on my 95 z28 in the passenger side header collector. According to the wideband my AFR is jumping from 14.7-17.3 i tried going to the maf tables and adding fuel and it has no effect the afr still jumps. Could a bad ground or plugged evap line cause this? Also an exhuast leak would cause this to right?
Old 03-13-2011, 07:06 PM
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Might have a misfire in one cylinder... a misfire causes unburnt oxygen to be seen by the O2 sensor.
Old 03-14-2011, 05:41 PM
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An exhaust leak would definitely cause that. Mine did the same until I fixed it.
Old 03-14-2011, 06:25 PM
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Well i found that the brass nut i was using to plug the air injection hole on my pacesetter headers was stripped and leaking. After i fixed that my wideband is acting like it should!



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