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Dysan911 · 12-19-2018, 07:45 AM

Hey guys,

I could really use some help with this!. I am completely at a loss as to what to do next!.

I've had an AEM A/F gauge for a few months and it works great no issues. Suddenly one day on my way into work. Just a normal commute the gauge went over to 4 dashes FULL LEAN. It stayed that way for the remainder trip to work with an occasional flash of reading normal A/F.

I called AEM and they are diagnosing my gauge but I bought a brand new kit only to find it does the exact same thing.

I replaced the WB sensor, Ran the new harness under the car up into the drivers side just to bypass the other harness I have zip tied down underhood. I also tested with the new power harness direct to battery. Ground wire is solid.

I topped off my battery lastnight just to make sure it wasn't a factor.

All of these things. A brand new gauge, New sensor, new harness and it still does it. After you start the car it just usually idles at FULL LEAN 20:1 or higher. 4 DASHES. While idling occasionally you'll see a little life where it momentarily will read 14.5ish and then swing all the way lean and go back to 4 dashes.

I really don't like the idea that I can no longer monitor A/F but at this point I honestly don't know what else to do.

Here's a video. Towards the end you'll see it goes full lean. It just pretty much stays like that most of the time now.

https://youtu.be/I36M9w8sQWg

12-19-2018, 07:45 AM	#1
Dysan911 Drives: 2017 50th Anniversary 2SS Join Date: Sep 2016 Location: Jacksonville, FL Posts: 930	A/F Gauge FULL LEAN Hey guys, I could really use some help with this!. I am completely at a loss as to what to do next!. I've had an AEM A/F gauge for a few months and it works great no issues. Suddenly one day on my way into work. Just a normal commute the gauge went over to 4 dashes FULL LEAN. It stayed that way for the remainder trip to work with an occasional flash of reading normal A/F. I called AEM and they are diagnosing my gauge but I bought a brand new kit only to find it does the exact same thing. I replaced the WB sensor, Ran the new harness under the car up into the drivers side just to bypass the other harness I have zip tied down underhood. I also tested with the new power harness direct to battery. Ground wire is solid. I topped off my battery lastnight just to make sure it wasn't a factor. All of these things. A brand new gauge, New sensor, new harness and it still does it. After you start the car it just usually idles at FULL LEAN 20:1 or higher. 4 DASHES. While idling occasionally you'll see a little life where it momentarily will read 14.5ish and then swing all the way lean and go back to 4 dashes. I really don't like the idea that I can no longer monitor A/F but at this point I honestly don't know what else to do. Here's a video. Towards the end you'll see it goes full lean. It just pretty much stays like that most of the time now. https://youtu.be/I36M9w8sQWg __________________ Former Ride: 17 Camaro 2SS, M6 - Fifty \| Procharger P1SC \| 3.7 Pulley \| Stage 2 IC \| Race Bypass \| DSX FF Kit \| JRE Custom E85 Flex Fuel Tune \| LT4 Fuel System \| JMS Voltage Booster \| MSD Plug Wires \| American Racing 1-7/8's LT Headers Full System Catback \| Baro Breakout Harness \| LT4 Map Sensor \| Katech Ported TB \| MMS Oil Catch Can \| 160 Thermo \| Solo Performance J-Pipes