Quote:
Originally Posted by lps5053
Does the skid plate need to be dropped for replacement of the precat O2 sensors. When I did a coolant flush I rememeber seeing the pre cat o2's (dropped the skid plate) but I can't remember if I would have access with the plate on or not. I'm sure I'll see it once I get it on the lift
|
I don't know on this one since mine is a 3.0. On my car, the sensors are easily accessible, right next to the spark plugs, accessible from the top = very easy.
If you believe there is a good chance that the sensors are actually OK and something in the connector or wiring or ... is the real problem, and if you can easily do this yourself, you may want to swap the two pre-cat sensors as a test to see if the codes stay where they are or follow the bank 1 sensor. Because you may end up finding the codes unchanged after swapping in new sensors. This test would confirm that the sensor itself is bad before you buy new parts, etc.