Does the AEM EMS utilize the stock 02 sensors???
Jun 7, 2007, 07:23 AM
#3
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just the primary is needed, the one in the o2 housing.
i removed the 2nd one. That one is only for emmission.
Be sure not to lose it. If you need inspection w/o the 2nd one you'll get a CEL.
i removed the 2nd one. That one is only for emmission.
Be sure not to lose it. If you need inspection w/o the 2nd one you'll get a CEL.
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Jun 7, 2007, 09:34 AM
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There should be absolutely NO confusion. The stock OEM Narrowband sensor is NOT calibrated to be read by the AEM or ANY EMS for that matter. If you can put it in the O2 housing. You are more than welcome to pm me if you have any questions.
Jun 16, 2007, 11:37 PM
#14
I could never think of a way to get the AEM to cycle around 14.7 like the stock ECU does. I don't think it has the required logic. I wonder though what would happen if you entered the calibration curve of the narrow band sensor, and setup O2 feedback with a pretty tight control limit (once the map is close to 14.7, which would require a wideband). It might simulate the stock ECU's behavior to some degree. Either way, it's not worth it, since you need a wideband to do any meaningful (and safe) WOT tuning.
Jun 17, 2007, 06:23 AM
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The AEM NEVER uses the STOCK sensors or even any aftermarket sensors. IT NEEDS to be be calibrated to use or read anything inputted to it. Doesn't matter open or closed loop.
The EMS will be in OPEN loop ALL the time, unless a wideband is specifically designated to read and give feedback to the ems. Then you can program closed loop status.
The EMS will be in OPEN loop ALL the time, unless a wideband is specifically designated to read and give feedback to the ems. Then you can program closed loop status.