Hey guys,

Just replaced my o2 sensor. I did this whole process while the battery was connected. I used a universal one and spliced all the wires into the originals. I've done this whole process before but I can't remember if I kept the battery connected...
When I turned on the car the light was still on and I could've sworn it went off immediately after I replaced my last o2 sensor.


My questions: Is the light supposed to go off on its own? If it didn't immediately turn off is there something wrong? Do I need to get it reset and it will be fine?

 

reset it with the screw method.

 

k thanks

 

it wont go off immediately but should go off within 30 miles or so of driving. The ECU operates in cycles. Or reset the ecu with the screw too.

 

How do those UNI o2 work out?? I bought an aftermarket catback for my 96 and has the o2 bung in the b pipe. Could i get a str8 through cat w/o o2 and put a UNI in the b pipe??