Bank one and two Sensor One malfunction in circut and lean codes. how can i fix my o2's
 

surely they cant be shot.. the 5k new..
or are they shot ? TIa

good self-beleet, boscoj. Was just about to ask htf a boost leak would make him lean
 

busted! =p

i cant understand what your trying to say ??

Jeff Doyle apparently deleted. What are your LTFTs (block 032 with engine off ignition on)?

right after the CEL with car on they were 7.9 at idle and -19.5 at part .. with engine off 4.9 idle
 

and -18 part..

weird thing is i havent changed anything before they were.. .6 idle and -7 part..

moral of the story, homebrew without a wideband and/or ECUx is tough.
 

I'd suggest you get one, the other, or both to successfully homebrew because maybe you were too rich and killed 02s or something.

good point will do.. specially wideband... u think running to lean could also kill the o2s

i have similar condition after oil change, turns out the oil level is a bit high
 

suck the excess oil out and everything reads normal and cel goes away