Obd2 splitter help

Evansa22 · 09-30-2021, 10:13 PM

Have an aem wideband and aeroforce gauge. This is the second one I tried but hp tuners won't read the pigtail. Anyone else have this issue? Gauges read fine but the obd2 hooked up in the original location doesn't seem to read. Any suggestions?

Evansa22 · 10-01-2021, 04:59 PM

So after some experimentation with the plugs, turns out hp tuners won't connect if the aeroforce is plugged in. If the gauge is not connected, splitter works as it should. Anyone dealt with this? Aem gauge and hp tuners work fine together. Maybe the gauge is pulling the same data as hp tuners and won't let it happen simultaneously?

infinitereality · 10-06-2021, 01:18 PM

With the SLC, my AIM is plugged into the OBD2 and with a splitter you can't flash tunes with it plugged in. Only way is to unplug all OBD2 and only connect the HPT. I do not know the reasoning, I always assumed it is because it can not read and write on the same data highway.

Evansa22 · 10-07-2021, 08:44 AM

Ok thanks, wasn't trying to flash at the same time, just data log and still won't connect. Figure its like you said the aeroforce and hpt can run the data at the same time

09-30-2021, 10:13 PM	#1
Evansa22 Drives: HBM ZLE Join Date: Aug 2017 Location: In the garage Posts: 805	Obd2 splitter help Have an aem wideband and aeroforce gauge. This is the second one I tried but hp tuners won't read the pigtail. Anyone else have this issue? Gauges read fine but the obd2 hooked up in the original location doesn't seem to read. Any suggestions?

10-06-2021, 01:18 PM	#3
infinitereality Limitless Imagination Drives: 2018 ZL1 & 2022 Hayabusa Join Date: Dec 2016 Location: Louisiana Posts: 473	With the SLC, my AIM is plugged into the OBD2 and with a splitter you can't flash tunes with it plugged in. Only way is to unplug all OBD2 and only connect the HPT. I do not know the reasoning, I always assumed it is because it can not read and write on the same data highway. __________________ 2018 Camaro ZL1 - Black - OEM Options: A10, Exposed Carbon, PVR, Nav, No Sunroof - Lightly Tinted GM Dark Tails, DD Side Markers, Morimoto 5000k, 100% LED - RotoFab Dry, Forgestar CF5V (ZLE Spec), Eibach Pro, AeroForce Interceptor, GT4 Tow Hook - Carbon Fiber (Satin): Radio, Shifter, Steering Wheel Controls, Shifter Top, AC Vents, Side Mirrors & Shark Fin 2022 Suzuki Hayabusa - Brilliant White Pearl & Shocker Yellow Wheels - +4 Arm, 240 OEM Wheel, Brock's CT (Ti) Exhaust, 1.25" drop, etc...

10-01-2021, 04:59 PM	#2
Evansa22 Drives: HBM ZLE Join Date: Aug 2017 Location: In the garage Posts: 805	So after some experimentation with the plugs, turns out hp tuners won't connect if the aeroforce is plugged in. If the gauge is not connected, splitter works as it should. Anyone dealt with this? Aem gauge and hp tuners work fine together. Maybe the gauge is pulling the same data as hp tuners and won't let it happen simultaneously?

10-07-2021, 08:44 AM	#4
Evansa22 Drives: HBM ZLE Join Date: Aug 2017 Location: In the garage Posts: 805	Ok thanks, wasn't trying to flash at the same time, just data log and still won't connect. Figure its like you said the aeroforce and hpt can run the data at the same time

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