Failing downstream O2 sensors but no code- help

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Aug 12, 2019 | 11:29 AM

bd3471

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Driver School Candidate

Joined: Jan 2019

Posts: 26

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From: TX

Failing downstream O2 sensors but no code- help

Anyone have experience with Techstream? Both my downstream O2 sensors failed a couple tests but not bad enough to throw a code and triggering CEL. Do i NEED to replace them?

Last edited by RA40; Aug 15, 2019 at 09:38 AM.

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