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Getting a code po172 and po54a. O2 sensor bank 1? 2014 3.5 l…

Customer Question
Getting a code po172...

Getting a code po172 and po54a .

Mechanic's Assistant: Just to clarify, what's the exact code? And have you tried to reset it?

O2 sensor bank 1 ?

Mechanic's Assistant: What is the model/year of your Ford?

2014 3.5 l ecoboost

Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far?

Cleaned map sensor . filters ,

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

No thas about it

Submitted: 10 months ago.Category: Ford
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Answered in 5 minutes by:
9/25/2017
Ford Mechanic: HDGENE, Ford Senior Master/Diesel/Trans replied 10 months ago
HDGENE
HDGENE, Ford Senior Master/Diesel/Trans
Category: Ford
Satisfied Customers: 6,649
Experience: 28 years Auto experience, Ford ,GM, Chrysler, Asian & European
Verified

Hello, and thank you for using Just Answer! My name is***** me a few moments to review your question and Ill do my best to assist you.

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Ford Mechanic: HDGENE, Ford Senior Master/Diesel/Trans replied 10 months ago

Hello, whats the second code? I think its one character short. Whats the truck doing beside a check engine light, is it running ok? How many miles are on the engine? Any modifications done to the truck like a performance chip, etc?

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Customer reply replied 10 months ago
The second po54a
Listed as
Cold start b camshaft position timming over advanced bank 1No mods done
Customer reply replied 10 months ago
Check engine light on then off for a day before returninf
Customer reply replied 10 months ago
Km 140 k
Ford Mechanic: HDGENE, Ford Senior Master/Diesel/Trans replied 10 months ago

Ok, can you post the 17 digit VIN number for the truck?

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Customer reply replied 10 months ago
That may take minute but the engine is 3.5 v6 turbo
Ford Mechanic: HDGENE, Ford Senior Master/Diesel/Trans replied 10 months ago

Thats fine, i need the vin for the build date information to check a few things for the build of the truck

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Customer reply replied 10 months ago
1FTFW1ETDEFB64595
Ford Mechanic: HDGENE, Ford Senior Master/Diesel/Trans replied 10 months ago

That vin is incorrect, can you check the number?

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Customer reply replied 10 months ago
The D is a O
Ford Mechanic: HDGENE, Ford Senior Master/Diesel/Trans replied 10 months ago

Ok since both codes are related to bank 1 and the mileage on this truck is up there, I would suspect an issue with the camshaft phaser for bank 1. The front of the engine would need to be disassembled to get to the phaser, these engines are known for timing chains failing and camshaft phasers failing. So this would be the area to check, replace the phasers and replace the timing chain.

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Customer reply replied 10 months ago
Ok thankyou
Ford Mechanic: HDGENE, Ford Senior Master/Diesel/Trans replied 10 months ago

You are welcome, if you need more help or information please let me know. If I was helpful, please use the 5 stars above to leave a positive rating.

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Ford Mechanic: HDGENE, Ford Senior Master/Diesel/Trans replied 10 months ago

Do you need more help with this concern?

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Ford Mechanic: HDGENE, Ford Senior Master/Diesel/Trans replied 10 months ago

Hello, its been a few days, do you need more help?

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