I was removing the o2 sensor on a 92 civic ex, 1.6L V-TEC, and it broke in half! The sensor broke free and was turning, but then it got tight and broke. The threads broke inside the manifold. The center portion of the sensor is gone so there is a hole where the sensor use to be and, of course, exhaust gasses escape through this opening.
Any suggestions on what to do now (besides having a stiff drink)?
Thank you for your help. Dan