Perhaps a more newbie question: how did you remove the speaker cover? My driver side mirror base has come loose recently too. Do I need to remove the door panel in order to remove the speaker cover too? Or is it possible to remove it without also removing the door panel?
Just an update on the situation:
Got the OBDII reader last week and read the code: P0420.
(Using the BAFX OBDII WiFi reader and using OBD Fusion app to read and display the readings)
Spent time graphing the rear O2 sensor voltage, which does fluctuate between 0.7V and 0.1V, with the idle...
Thanks again. I'm going to wait for the reader to come in and I'll do a little check myself. Hopefully it arrives on time and I'll read some of the data myself today. I'll need to do the emissions test next year.
Regarding the 3rd party shop, it's in the state where I'm currently get emissions...
Thanks for the quick replies guys! Think I should still get some live readings from my O2 sensors before I bring it to the shop? I'll need to get this issue addressed eventually because I'm registered back in MD (which requires emissions testing every few years). I'm trying to wrap up in grad...
Hey, newbie to the forums here. My 2001 4Runner (~194k, and my family purchased it brand new) has also recently been throwing the CEL. Dealership only read the P0420 and quoted me ~1600 for replacing the first cat and ~1700 for the second cat. Went to a second mechanic and received a quote for...
