wideband MAX lean when WOT...log seems good?

Okay so I logged my car last night with datamaster....cruising the car is around the 14.7-15.3 range....moderate throttle is drops to 13.5 then WOT it goes MAX lean! But after getting off it it will flash 10.1 RICH then go lean.

The O2s are reading about 920-950 a side. The log seems good.

I will try to get a full WOT run logged tonite and post it up.

Jay

i'd make sure you dont have any exhaust leak around the o2. i was tuning a car and it had a gasket blown out of the collector, the o2 was 2-3 inches before it and it still gave me an incorrect reading.

might want to check and make sure your not pulling on a wire for the o2 when the engine torques.

I shouldnt have a leak but who knows....I just got the exhaust on last weekend. New longtubes with nice kooks gaskets and a custom Y pipe. The guy uses gaskets with some kind of tar/rtv on the collectors.

Unless ,my #8 slip on primary is fooling it bc i have the Wideband in that header and when i sea foamed it i saw smoke come out of that primary.

Jay

if that was the problem you would think the computers o2 sensors would see it

but you do need to fix that as well, could give you false readings