So I wired blue wire from aem wideband to pin 2 o n serial cable and then grounded 5 and it doesn't work. Ive got it set in Neptune to direct serial and gauge on that and it just reads 0? Ideas? Thanks alot.

 

Direct Serial Logging From LC-1, LM-1, LM-2 (LM-2 USB Is Fully Supported), and PLX Wideband Products.

AEM is not listed, so you'll have to use an ECU analog input.

 

gotcha. So if I run it to d14 should I ground to a26 like I read?

 

Yes, ground it with the ECU.

 

Make sure you are not putting the BLUE wire to the ECU...make sure you are sending the WHITE wire to D14

 

Good info guys! So Do you cut the wire from the ecu harness at d14 and connect that directly to the white wire from the wideband? What do you do with a26? Ground the wideband to it by splicing into it?

https://technet.ff-squad.com/wiring.obd1.htm

Not sure if Neptune was updated since this post but there is an AEM option now but it still didn't work.

edit: found it. This should be sticky https://www.hamotorsports.com/pages/...g-instructions