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Check engine light codes P0051, P0150 and P1168

Tiny
APIERPAOLI
  • MEMBER
  • 2007 INFINITI G35
  • AUTOMATIC
  • 100,000 MILES
I recently had the check engine light codes P0051 P0150 and P1168 come on in my car listed above G35x. What is the problem that these codes necessitate fixing?
Saturday, June 15th, 2019 AT 7:22 PM

3 Replies

Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

All three of these Direct Trouble Codes are related. They all deal with the bank 2 Air Fuel Sensor 1 or upstream sensor. By upstream we mean the one before the catalytic converter, or if you you follow the exhaust from the engine to the tailpipe, it's the Air Fuel sensor on top left of the engine. I have included in the diagrams down below factory diagnostic troubleshooting guides for all three DTC's. Please go through these guides and get back to us with what you find out.

Thanks,
Alex
2CarPros
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Saturday, June 15th, 2019 AT 11:39 PM
Tiny
APIERPAOLI
  • MEMBER
  • 2 POSTS
Hey Alex,

Thank you for the awesome advice. I went through the steps that you outlined and found that the Bank 2 Air Fuel Sensor needs to be replaced. Thanks again for the help.
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Sunday, June 16th, 2019 AT 11:10 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
SCWICKEDSTANG is one of our best! Use 2CarPros anytime, we are here to help. Please tell a friend.
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Tuesday, June 18th, 2019 AT 7:55 PM

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