LS1 rich or lean????if i run N/A why cant i just use o2 sensors in the system. if 02s

[tunerrjuan]

JOSEPH'S MERO 3.10.22 TEST DRIVE FROM DISPENSARY.hpl[ATTACH]118256[/ATT


........if i run N/A why cant i just use o2 sensors in the system. if 02sensor is 900mv @ wot dont that mean system is at stoich????ACH]

[anniversaryss]

It wouldnt be stoich it would be in PE at WOT. From what Its worth I've heard you could use .900mv and above for wot fueling but it's not at all the right way.

FYI stoich on pump is usually around .450 anything above is rich anything below is lean

[tunerrjuan]

ahhhh i see , said the blind man........THANK YOU

[kevin87turbot]

ahhhh i see , said the blind man........THANK YOU

900 mV is usually a safe number, but not always. Just like AnniversarySS indicated, the narrow band sensors just aren't accurate at WOT. I've seen some on the dyno that were at 12.1:1 at 900mV and some that were at 13.2:1 at 900mV.