AFR crazy reading, something wrong?

[87gmc]

I hooked my wb up leaving narrow band hanging but still connected.

at idle im getting around 14.0 afr but as soon as i take off it goes way high like over 22.0 AFR and if i go wot it goes down to about 8.00 afr never really any where near 14.7.

Think the engine is really running that lean or rich? I see no signs like black smoke or the engine feeling real weak or any knocking. EFIlive and logworks were showing the same numbers.

I'm running custom os number 3 using the afr to lean out but at the most im only commanding 15.9. it is in semi loop

What gives?

[GMPX]

What is the commanded AFR showing?.
It almost sounds like a scaling problem on the WBO2 unit (if possible).
I would think if it were running 22:1 you would hear a nice pop from under the hood

Cheers,
Ross

[87gmc]

What is the commanded AFR showing?.
It almost sounds like a scaling problem on the WBO2 unit (if possible).
I would think if it were running 22:1 you would hear a nice pop from under the hood

Cheers,
Ross

Thats what i figured, commanding around 15.5 at cruising speed

think its possible of exhause leak?

[Black LS1 T/A]

Did you make sure your wires are away from headers or other hot spots? No shorts or {GASP} opens on any of the wires?

Just another thing to look at...