Help with AEM 30-0334/30-0333 Wideband to ProLink+ - Lambda Reading Stuck at 0.60

[andnosobabin]

Hi everyone,

I'm having trouble setting up my wideband (purchased directly from AEM on Amazon, not a knockoff). The seller listed OEM as 30-0334, but the manufacturer part number is 30-0333 so I'm not entirely sure which one I have. I've cut off the OBDII connector because a standalone setup is fine for my what I need. Hopefully this was right.

The wideband is being installed for logging with HP Tuners on my 2005 Chevy Tahoe, and I?m using the MPVI3 with ProLink+.

Here's how I've wired it:

Green wire from the AEM harness → Orange wire on the ProLink+ (CAN High)
Brown wire from the AEM harness → Yellow wire on the ProLink+ (CAN Low)
ProLink+ ground wire → Common ground

When I view the data in HP Tuners, it's stuck showing 0.60 Lambda, and I can't figure out what I'm doing wrong.

Can anyone confirm:

If this wiring setup is correct?
If the wideband model (30-0333 or 30-0334) has specific requirements for wiring CAN High and CAN Low?
What settings or transforms I might need to use in HP Tuners to get this working? Or do I need to buy the 0300 version?

Any advice or suggestions would be greatly appreciated! Let me know if I need to provide additional details.

Thanks in advance!

[18f1505.0roush]

I'm trying to use blue and black wire for analog its stuck on .54IMG_5299 2.jpg

[gtstorey]

I think the analog wires are white and brown. And that isn’t brown with white stripe. Check the aem manual.

[andnosobabin]

I didn't try to connect the analog wires. I connected the CAN wires directly to the proLink+ the manual only instructs how to go through the ECM but I don't have a can based ECM so I'm going directly to the proLink since I still have my stock pre cat O2 sensors.

I'm stuck on how to get the right reading in vcm scanner its stuck on .62 lambda but my gauge reades correctly.

Any ideas?

[LilSick]

Any ideas?

you could stop trying to use CAN ?

sounds like you already have the prolink ground connected to the gauge

you didnt need that for CAN but you will for analog

leave it connected

connect the red prolink wire to the analog output from the gauge

configure scanner channel and layout

done deal

[gtstorey]

My reply was to post #2. I should have quoted it. But I don’t think prolink will accept can data. That’s probably what LilSick is saying.

[LilSick]

that is not what i was saying as pro link will work with CAN

orange wire is CAN hi

yellow wire is CAN low