🛠️ Help Needed: Logging Wideband AFR via APU1 Analog Input Alongside ECM Data in TunerPro RT V5
Hi all — I’m trying to log wideband AFR from a Performance Electronics WB-O2 controller alongside ECM parameters (RPM, MAP, TPS, etc.) in TunerPro RT V5 on my 1985 Corvette (L98 TPI).


🔧 Setup:
• ECM: 1226870
• XDF: 1F_updated.xdf
• ADS:$1F.ads from Gearhead EFI
https://www.gearhead-efi.com/Fuel-In...Information-1F
• Interface: Moates APU1 with AutoPROM
• Wideband: Performance Electronics WB-O2 (this exact kit: https://pe-ltd.com/product/wideband/)
• Software: TunerPro RT V5


🔌 Wiring:
• The pink analog output wire from the PE wideband controller is connected to Port 1 Analog Input on the APU1 AutoPROM.
• Voltage sweep confirmed: 0–5V matches AFR range of 10–20.


🎯 Goal:
I want to log AFR from the wideband controller at the same time as ECM data in one TunerPro session and datalog file.


📐 AFR Formula:
Using ((X * 2) + 10) in the ADX monitor item to convert the raw analog byte to AFR.


❌ Problem:
- ECM data logs fine using $1F.ads
- AFR monitor item shows nothing — blank or zero
- TunerPro doesn’t seem to recognize the analog input unless it’s part of the ADS or a merged ADX
- I don’t know how to build a custom ADX that merges analog input polling with the ECM datastream




🧩 Questions:
- Has anyone successfully merged analog input polling into a $1F ADX?
- Is there a known-good ADX template that logs both ECM and wideband AFR via APU1 analog input?
- Does AutoPROM passthrough mode interfere with analog input polling?
- Can someone help me build or share a working ADX that does this?
Any help or working examples would be hugely appreciated. I can share my ADX file or screenshots if needed.


Thanks!
— Billy
— Billy