PLX gauge reads different than EFI Live

[nonnieselman]

Yes another problem!

my buddys truck has a PLX and i hooked the external wire up to the V2 and EFI Live is showing 1.0 AFR off from what the PLX gauge is reading.
That takes quite awhile to tune speed density when you have 2 diff readings :(

[joecar]

Can you post a log file.

[nonnieselman]

yea, ill have to dig thru my laptop tonight and see what i can find.

[nonnieselman]

I looked on my laptop and couldnt find a log.
We are getting one tonight since the new turbo went on.

But kinda at a loss as to which AFR to trust?

[joecar]

If you can log running in closed loop or semi open loop, we can look at the wideband AFR/EQR waveform and decide if it is correct or not.

[tokymon]

if you are running it analog
then it will be voltage off set
do a search for wideband off set

[nonnieselman]

Woops..
forgot to mention its a OLSD COS3 setup, no O2s except Wideband.