not sure if this is the right section or not but.. im trying to figure out what my front o2s are supposed to be reading. i THINK they were reading around a 440-450, i dont remeber for sure. but the fronts keep setting off the ses light. wont have access to a scanner again until tuesday.

 

You should see values quickly changing in the range of 100-900 mv.

 

it never jumped up above 450. even at about 5000 rpms

 

You have a bad o2(s)

 

Can i use a multimeter to check o2 sensors for example by chaining in some wires and watch them wwhile the car is running?