Engine light on read system 2 lean bank 2. The o2 sensors were changed the upstream but engine light came back on
HI there
When this happens the rear sensor could also cause the issue. Plus, you need to check for any possible intake leaks on bank 2 or exhaust leaks. The mass air flow sensor can also cause this code to appear. Here is some more info that might help you out.
P0174 - System Too Lean Bank 2 Read more: https://www.autocodes.com/p0174.html
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