Wideband jumping from lean to rich, any explanations?
08-12-2023, 01:23 PM
#1
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Wideband jumping from lean to rich, any explanations?
Just replaced my old o2 sensor with a new one (aem uego with oem new sensor) and the wideband is jumping all over the place. Old sensor was not functional but didn’t act like this.
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08-19-2023, 04:34 PM
#3
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What do you mean "OEM new sensor"? Do you mean one from Mazda?
Also, what model AEM? Did it come with a 4.2 or a 4.9.... well, I suppose the connectors are different.
DNM
Also, what model AEM? Did it come with a 4.2 or a 4.9.... well, I suppose the connectors are different.
DNM
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08-19-2023, 04:35 PM
#4
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It was a new AEM sensor, OEM might have been the wrong term sorry. AEM customer support seems to think that the issue is an exhaust leak further upstream but im fairly sure it is just a faulty sensor
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