Warm Up Catalytic Converter Efficiency Below Threshold
#11
Similar issue with my V6, but message usually is PO431 (same problem but front cylinder bank) No extra noise from exhaust than normal, usually when cold and wet. replaced O2 sensors but issue returns again. 230,000kms on vehicle, no oil usage and runs just fine so maybe the cats are getting blocked. Looking for suggestions
#12
Similar issue with my V6, but message usually is PO431 (same problem but front cylinder bank) No extra noise from exhaust than normal, usually when cold and wet. replaced O2 sensors but issue returns again. 230,000kms on vehicle, no oil usage and runs just fine so maybe the cats are getting blocked. Looking for suggestions
#13
Any updates?
I am having the same problem and it fixes itself when it rains. The rain seems to affect the problem in some way. Any updates or solution?
#14
Had to replace catalytic converter on mine. Luckily it was under the 80k mileage warranty period. Heard it was a common problem on some Outlanders.
#15
Did you have any performance issues or just the check engine light? I put in some fuel injector cleaner and pushed the engine to redline for a little while. Light shut off for a month or so but back again.
#17
Last edited by Truwarrior22; 02-23-2023 at 09:49 AM.
#19
Thanks, just changed my spark plugs at 100K miles. Light went off after a few trips, we’ll see if it comes back on. It’s toying with me lol
#20
Thanks
ive heard the same thing as well. Im going to remove it and try a way to clean the catalytic converter because it's a really expensive part. Thanks