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Thread: PO172 code after Cylinder Head replacement

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12-26-2022, 12:29 AM

Zhehan

Member

Join Date: Jul 2022

Location: Beaverton

Posts: 315

Zhehan

Member

Join Date: Jul 2022

Location: Beaverton

Posts: 315

Quote:

Originally Posted by aa010175

OMG you have to be kidding with me…. 😡

The Bank 1 refers to the O2 Sensor. That's what's reporting the too lean problem. Single side exhaust system, so only 1 "Bank". Hope this helps clear up the confusion.

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