What would happen if you were running an OBD2 computer/harness with OBD1 headers with only one O2 bung and only one O2 Sensor hooked up? Would it dump too much fuel causing it to bog when accelerating?

 

If you are running your the primary O2 (first in line from the front), you will throw a cel, but it should be fine. The second 02 sensor is in place to measure the emissions level after the catalytic converter. So to recap, your car should run fine with just the front O2 hooked up.

 

its a B18C1. the guy i got it from was running a chipped p28 i believe. the headers has one o2 bung right at the end by where it bolts up to the exhaust. idk if this is the primary or secondary. but its bogging when i try to accelerate when its warmed up but from a cold start its fine. i was thinking that it could be from only one o2 hooked up that was making the air/fuel ratio ****. but idk tell me what you guys think

 

The bung you describe is the secondary o2 and you need the Primary. The secondary is under the car near exhaust (cat) the primary is on top of exhaust manifold when you open up the hood. You could extend the wires and plug from the primary down to underneath the car where your bung is. I realize this is downst
ream quite a ways but you NEED the Primary.