Hello, my question is, when changing an 02 sensor should the sensor go in real tight and should the threads on the sensor be mashed. Does the sensor have one type of thread and the exhaust have a different type. Because the one that I have mashes the thread, Also, what can cause a sensor to foul, I just replaced one about 7-8 weeks ago and it's fouled already?
Sep 26, 2009 at 5:04 AM
