Codes p2096 and p0420

2015 FORD EDGE

74,000 MILES • 2.0L • 4 CYL • TURBO • 2WD • AUTOMATIC

WESLEYMOREY12

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Recently got a p2096 code on my fort edge 2.0 Ecoboost. I got it to reset and tonight I got it again. This time I got a p0420 code and p2096 code. I am thinking downstream O2 sensor, but before buying part want to make sure looking at correct thing, I read something about it possible purge valve. Also, where is the downstream O2 sensor located? I looked under car and couldn’t see it.

Jun 28, 2022 at 11:20 PM

SQM

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Hello,

The codes
P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
P2096 - Post Catalyst Fuel Trim System Too Lean Bank 1

These codes can get triggered due to a number of reasons. It could be faulty oxygen sensor, exhaust leak, leaking fuel injectors, faulty catalytic converter. It can also be due to wiring issues for the oxygen sensor.

https://www.2carpros.com/articles/repair-lean-mixture-codes-p0171-or-p0174-on-some-manufacturers

The downstream sensor is located on the upper part of the pipe. You will have to remove the driveshaft to access it.

I have attached the diagnostics for the codes below for your reference.
Also attached is the oxygen sensor replacement procedure.

Let me know of any questions.
Thank you.

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Jun 29, 2022 at 10:48 AM