hey i am new to the board , i just bought a 1996 z28 6 speed with aftermarket exaust , it runs fine but get a ses code that insuficiet activity on bank 1 sensor 2 for 02 i looked on the passanger side and there is a sim pluged in to the second o2 but cannot find the wires or anything for the drivers side , anybody know where they come in so i can trace them down

 

If I remember correctly the driver's side ones are right next to the block tucked in there. I know you can find the plug for the flat inline connector (o2 before the cat) right behind the driver's side cyl head and the o2 is directly above the cat plugged into the exhaust manifold. The square connector (o2 after the cat) is somewhere in there and the o2 should be directly below the cat, visible if under the car.