0 like 0 dislike
752 views
by (101 points)

Looked up this code and saw many issues this might be so I would like to narrow it down before going to a mechanic.
When I am driving and slowing to stop it is like something disengages with a small clunk and then re-engage as I begin to accelerate again.
This only happens while going very slowly. Otherwise the vehicle runs great with no rough idle at all.
Can anyone shed some light?

Vehicle: 2014 Nissan Versa Note 1.6 SV

1 Answer

0 like 0 dislike
by (13.5k points)

Hi there

This code is pointing to an issue with the catalytic converter. This is not likely what you are hearing, there are several possible causes for the code, but the sound won't be there. I would check the engine and transmission mounts.

P0420 NISSAN - Catalyst System Efficiency Below Threshold Bank 1

Read more: https://www.autocodes.com/p0420_nissan.html

Related questions

0 like 0 dislike
1 answer 778 views
asked Apr 21, 2017 by DON
0 like 0 dislike
1 answer 413 views
0 like 0 dislike
1 answer 190 views
asked Aug 3, 2018 by Mike
2 like 0 dislike
1 answer 11.5k views
0 like 0 dislike
1 answer 663 views
asked Aug 24, 2018 by ART

36.2k questions

32.2k answers

1.3k comments

22.8k users

Need A Repair Shop?
Find local automotive repair shops in your area.
Does your car have Safety Recalls? → Check here
...