Anyone replacing catalytic converters on their 2022 2.0 Nautilus?

[Ralph Greene]

Having our second replacement done this week on wife's 2022 Nautilus. It's the 2.0 T engine. Check engine light comes on and code say inefficient cat the Lincoln tech says. Car is a tad over 2 years old. Has 15,000 miles on odometer. First one was replaced about a year ago, now they're changing it again. Car is driven normally. Usually driven about 20-30 miles each day it is used. Urban driving....45 MPH or so. Occasional Interstate use. Usually goes about 10 miles to gym and shop. Then 10 miles home. Gets to operating temp. Wires have been checked, no exhaust leaks, a/f fine. No other codes. Car drives fine, adequate power, etc. MPG 23 or so on this type of use. We use Shell 87.  Have any of you guys seen this on other 2.0 Nautilus vehicles? Thanks

[akirby]

First I’ve heard of it.

[RedHoncho01]

I would suggest contacting the Lincoln Concierge.  This is unusual. Get both replacements documented.  The Concierge can get technical support that can assist in diagnosing the condition that is leading to the replacements.

 

I've never replaced a catalytic converter on any vehicle I've owned, even ones that were 10 years old.  

 

I'm assuming this is being done under warranty.

 

Lincoln Concierge can be reached at 800-521-4140.

Edited May 25, 2024 by RedHoncho01

[Ralph Greene]

Recall on OBD for cat efficiency light work was done today. Service rep said he thinks the reflash only reduced the sensitivity of the sensor. Said he had a bunch more to do. Hope this works. Lots of warranty left if it doesn't. Car has 18,000 miles on it.  Evidently Ford got tired of replacing cats unnecessarily. Recall said our Nautilus may have OBD system that falsely sets DTC P0420. 

Edited November 13, 2024 by Ralph Greene