i just recently picked up a 98 OBD2 b18c1 swap that has been coverted to OBD1, and until today, i go and take the heat shield off the headers and there was no O2 sensor there wasn't even a hole for it! same thing with the secondary pipe. what should i do? i'm currently in the middle of swapping it and i'm a little tight on cash, so i was wondering what could/would happen if i drove the car until i fix it?

btw, the primary has "AGP4 8B27"...if that means anything.

 

your going to have to add a o2 bungie...any muffler shop will do it...not to expensive

 

I don't think I quite understand what it is you are asking. If it is a JDM OBD2 swap, there will be no secondary 02 sensor. No matter what there should be a hole in the HEADER (no headerS man, we have 1 exhaust bank) for the primary 02.

 

it's a usdm, and when i said "hole" i meant the hole for the O2 sensor (as if the O2 sensor was missing) sorry for the unclarity.

 

OBD 1 gsr cats have the hole in it. it is not in the A pipe like the civics.