This morning the check engine light came on & stayed on my Subaru Baja in signature. Took it to Advance Autoparts and when they scanned it -- the P0420 code came up. I looked the code up on the computer and I immediately thought "oxygen sensor." Googled the code for the Baja that presently has 91,973 original miles and it stated -- "common misdiagnoses."
1)Ignition System
2)Fuel System
3)Oxygen Sensor
4)EGR Valve
Question being then -- what is the code referencing to then???
1)Ignition System
2)Fuel System
3)Oxygen Sensor
4)EGR Valve
Question being then -- what is the code referencing to then???
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