In V3, is 150kOhm resistor still recommended to connect between +5V and WBO VS pin like it is recommended in V2 from version 2.150 ?
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It depedns of PC Board revision not a fimrware.
If your revision is older than “O” (O letter), then we advice to use resistor.
You can check revision in application about window (you need to be connected to ECU)
It is O revision, the resistor is not required
So I bought the new USB-C Black, but this is still revision F, do I still need the pullup on a ‘new’ ecu?
The USB-C version doesnt require resistor for LSU 4.9
We are investigating why it shows rev. F.
The board is revision P
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If your using the resistor on an ECU revision that doesn’t require it will this cause false λ readings?
there should be no problem
didnt want to open a new topic about the lsu 4.9 so i put my question here.
can i use the lsu4.9 on my 1.8tpnp emublack without resistor?
my revision is also F but i see that it can be wrong in the post above?
I have an ECU (EMU Black) the SW shows REV F, CPU REV G. I don’t know why it has two revs, but as I understand for my ECU the resistor is reqiured.
For now - I didn’t connect any resistor and lsu 4.9 works, what is the reason to use the resistor?
What problems I may have without the resistor?
thanks
REV F is the revision of the main board. Rev G is a revision of microcontroler (the CPU).
If you do not put the resistor the sensor can start to show very lean value after some time.