Check Engine Light stays on, codes P2189, P0174, P0171 and P2187

Tiny
BOCKY33
  • MEMBER
  • 2015 HYUNDAI AZERA
  • 6 CYL
  • AUTOMATIC
  • 140,000 MILES
No obvious problem with driving but the light stays on.
Computer codes:
P2189 Bank 2
0174 Bank 2
P0171 Bank1
P2187 Bank 1
These codes say these cylinders running lean.
Dealer Service not available for another week
Is there danger in driving?
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have the same problem?
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Monday, February 28th, 2022 AT 3:25 PM

1 Reply

Tiny
SQM
  • EXPERT
Hello,

Generally speaking, the lean trouble codes will impact the fuel mileage and could have some drivability issues. However, it is usually not dangerous to drive.

As for the drivability, are you experiencing any issues?

This type of lean code can get triggered due to a number of reasons. It could be due to a leak in the air intake, faulty fuel injectors, improper fuel pressure etc.

Here is a helpful guide:

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

I have attached some general information for your reference.

If you decide to tackle this yourself, please let me know and I can provide you with details of how to trouble shoot these codes.
Thank you.
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Monday, February 28th, 2022 AT 8:49 PM

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