My 2014 CX-5 GT developed some problems when I went overboard with carb cleaner and Berryman's Chemtool when I was cleaning the intake.
I now have a P0421:00-27 Efficiency Of Catalyst 1 Is Lower Than Limit - Bank 1 DTC.
I've tried used up a gallon of lacquer thinner originally, which cleared out the check engine light, but now it's back.
Using my X-tools D-7, I can see that the bank 1, sensor 1 reading is fluctuating wildly, from -632 to + 482, when the reference range (as provied by Xtool) is -2 to +2.
Since I haven't the experience with seeing the normal range, can anyone tell me if my O2 sensor is shot or something else might be wrong?
The other sensor, bank 1 sensor 2 (I presume after the cat) appears steady.
I now have a P0421:00-27 Efficiency Of Catalyst 1 Is Lower Than Limit - Bank 1 DTC.
I've tried used up a gallon of lacquer thinner originally, which cleared out the check engine light, but now it's back.
Using my X-tools D-7, I can see that the bank 1, sensor 1 reading is fluctuating wildly, from -632 to + 482, when the reference range (as provied by Xtool) is -2 to +2.
Since I haven't the experience with seeing the normal range, can anyone tell me if my O2 sensor is shot or something else might be wrong?
The other sensor, bank 1 sensor 2 (I presume after the cat) appears steady.