We got up early and drove up into the hills to one of our favorite trails. This trail is about 7 miles total in a loop and we like it on weekends as we rarely see more than a few people on a whole hike. We must have passed 50 people at least. Wow, big holiday weekend, everybody was out. Helps to have perfect weather too, I guess.
When I started the Yukon up to turn around on the fire road at the trail head. I noticed a CEL didn't go out. My first thought was "Crud, one of those new O2 sensors I just put in was bad!", then I thought, "or worse, that Bank 2 Sensor 1 connector was such a bear to reach, I must have not gotten it back together correctly!".
I pulled out my handy dandy ODBII reader and plugged it in. I launched the app on my phone and started looking at what was going on. My wife asked what I was doing and I told her we have a check engine light and I wanted to know what I did wrong when I installed those new O2 sensors.
I checked the live data and everything seemed good on the O2 sensor and fuel trim front. I then did a code read and saw a P0442 code was set. I told my wife the CEL was on because I probably forgot to tighten the gas cap when I last got gas. I went back and sure enough, had a loose cap.
She was pretty impressed to have a device that could tell you your gas cap was loose.
When I started the Yukon up to turn around on the fire road at the trail head. I noticed a CEL didn't go out. My first thought was "Crud, one of those new O2 sensors I just put in was bad!", then I thought, "or worse, that Bank 2 Sensor 1 connector was such a bear to reach, I must have not gotten it back together correctly!".
I pulled out my handy dandy ODBII reader and plugged it in. I launched the app on my phone and started looking at what was going on. My wife asked what I was doing and I told her we have a check engine light and I wanted to know what I did wrong when I installed those new O2 sensors.
I checked the live data and everything seemed good on the O2 sensor and fuel trim front. I then did a code read and saw a P0442 code was set. I told my wife the CEL was on because I probably forgot to tighten the gas cap when I last got gas. I went back and sure enough, had a loose cap.
She was pretty impressed to have a device that could tell you your gas cap was loose.