My CEL came on yesterday. Autozone says P0420 code which is the catalytic converter. I have never had a CC go out before. Anyone else have this trouble with the turbo Cruze? I'm curious if there is some other possible cause or if I should plan on replacing CC. Car runs normal temp and has plenty of power so I don't think it's plugged. Drove 140 miles today no issues. Have noticed mpg slowly decreasing for about a year so maybe cat really is fouled due to some other issue like running rich. Hoping someone here has had knowledge to share.
Details on car:
2011 Chevy Cruze
1.4 L turbo
160,000 miles (80-90% highway)
Uses maybe 8 oz of oil over 6-7k OCI
Water pump replaced at 40k & 60k
Ignition coil replaced ~10k
Turbo oil feed pipe replaced ~120k
Thanks in advance
Details on car:
2011 Chevy Cruze
1.4 L turbo
160,000 miles (80-90% highway)
Uses maybe 8 oz of oil over 6-7k OCI
Water pump replaced at 40k & 60k
Ignition coil replaced ~10k
Turbo oil feed pipe replaced ~120k
Thanks in advance