P0420 Cat efficiency bank 1

Mezezo_OpalB to Mechanic Advice@gearhead.townEnglish · 1 year ago

Got a 2015 dodge journey2.4L 4 cylinder, had been driving it around with this code on for a few months, just couldn’t get it checked out earlier. came to the conclusion I needed a new Catalytic converter so I got one and installed it myself. Have been driving around for about a month or 2 now and i keep getting the same P0420 code. I have a FiXD reader that gives me live data and the 2nd O2 sensor (Post cat) the reading isn’t steady. it fluctuates from like 0 to .7 volts.

just looking for any advice on how to fix this issue, i’ve cleared the code at least 7 times by now but something must still be wrong. any help would be appreciated

Chat

Mechanic Advice@gearhead.town

mechanic_advice@gearhead.town

Create a post

You are not logged in. However you can subscribe from another Fediverse account, for example Lemmy or Mastodon. To do this, paste the following into the search field of your instance: !mechanic_advice@gearhead.town

Rules

This is a community for asking Mechanical questions pertaining to vehicles, engines, etc. If it’s got wheels, treads, floats, flies, or has an engine you’re good to go and we’ll do our best to help. Title, salvage, body work, paint work, etc questions also do not belong here. Memes, videos and other non-questions are not allowed.
No intentionally bad, harmful, or deceptive advice. If we feel a piece of advice is particularly reckless, dangerous, or extremely unhelpful it may be removed. Please report bad advice to the mods.
Keep discussion friendly, civil, courteous, and professional. We’re here to help so being rude won’t help. Don’t assume a shop is trying to “rip you off.” It’s okay to ask for a second opinion.
Only one vehicle/problem/incident per thread, and only post once. The only exception is for posting updates, provided it is properly marked as an [Update] or similar.
Body Work. Questions related to dings, dents, accidents, paint and so forth DO NOT belong here. Take the car to an auto body repair shop who can give you a qualified estimate.

IMPORTANT

Understand that the assistance you receive is ADVICE ONLY and is given with the understanding that the giver assumes no liability for any damages that occur as a direct or indirect result. It is impossible for a mechanic to diagnose your problem accurately without seeing/hearing the problem with his own senses. Any advice you receive you must use AT YOUR OWN RISK.

Visibility: Public

This community can be federated to other instances and be posted/commented in by their users.

1 user / day
1 user / week
1 user / month
1 user / 6 months
2 local subscribers
2 subscribers
6.49K Posts
13.2K Comments
Modlog

mods:
communick@gearhead.town