How come my bank 2 O2 sensor reading are lower then my bank 1 ones. This makes me ping on nitrous and is not good. Is it a bad O2 sensor or what? It will dip sometimes too.

 

The N20 guys will be your best source to answer this question...

Moving to the N20 section.

 

1st how much lower is one than the other? Is this an average reading or a snap shot of a reading? Most often one will be lower than the other but not by a lot.

 

And are you taking that reading at WOT?

 

These reading are taken at WOT. My passenger side is usualy about 30 or so less then my driver side(AVG 02 at WOT B1-910 B2-880) and then also on the spray bank 2 has a lot of dips in it where is drops down very low like to 780-850 and as soon as this happens I get out of it but I cant figure out what would be causign it.

 

doh....does it do it on motor as well. Possible bad injector or O2 sensor.

<small>[ August 17, 2002, 02:39 PM: Message edited by: 383LQ4SS ]</small>

 

yea it also does it one the motor, but only on the dyno. here is a dyno graph. you cant tell on the A/F but there is spikes in the o2 readings where the dips are.
http://home.attbi.com/~frc191/Dyno.jpg