P0173 P0173 OBD-II: Fuel Trim Malfunction (Bank 1)
What P0173 means for you
This code indicates a fuel trim issue that can impact engine performance and efficiency.
Symptoms
- The Check Engine Light will turn on
- Often, there may be no noticeable symptoms
- In some situations, fuel efficiency may decrease
- The engine might experience hesitation during acceleration
Common causes
- The powertrain control module (PCM) relies on various sensors to calculate the necessary fuel amount for optimal engine operation. If the PCM fails to maintain the correct fuel-to-air ratio, it triggers code P0173.
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Send your ECUWhat this code means
Code P0173 signifies a malfunction in the fuel trim system for bank 1, where the PCM cannot correctly adjust the fuel mixture to meet engine demands.
Frequently asked questions
It is not advisable to continue driving with a P0173 code, as it can lead to reduced engine performance and fuel efficiency.
The repair cost for a P0173 code can vary widely, typically ranging from $100 to $300, depending on the underlying issues.
Common repairs may include replacing faulty sensors, fixing vacuum leaks, or addressing issues with the fuel system.
