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Thread: Innovate MTX-L and AEM 4110 AFR signals all over the place

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    Innovate MTX-L and AEM 4110 AFR signals all over the place

    There was an AEM wideband on the car when I bought it, but I didn't really care for it, so I switched to an Innovate Motorsports MTX-L which I've used several times in the past and love them. Unfortunately, I'm still seeing the same behavior in my datalogs as I did with the AEM which is AFRs all over the place. I've attached a screenshot of the region I'm referring to as well as the datalog itself (1:42 into the logging is an example of this). If you look at the narrowband signals, they look pretty smooth over the same region which tells me something is up with the wideband coming in. My next step is to put a voltmeter or scope on the analog signal from the wideband to see if it matches what I'm seeing in the logs. Ever see anything like this or have any additional thoughts? Is this just overlap from the bigger cam?

    The other strange part is around 7:55 in the log. The narrowbands are almost completely opposite each other at low rpm cruise.
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    07-may-2023-vetuning-2.hpl
    Last edited by phuz; 05-08-2023 at 09:45 AM.
    • 2001 C5 Corvette (625rwhp - Procharger, LS6 heads, Torquer V2 cam)
    • 1991 Volvo 940 - 2JZGTE (600rwhp - PT6466, HKS 272 cams)