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Keeps throwing p0171 & p0174 codes. I've changed maf sensor…

Customer Question
Keeps throwing p0171 &...

Keeps throwing p0171 & p0174 codes. I've changed maf sensor and vacuum hoses out. Still throwing codes

Mechanic's Assistant: Does the engine stall right after starting? And what about hesitation or jerking during acceleration?

Nope

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

2001 f150. 5.4l

Mechanic's Assistant: Are you fixing your F150 yourself? What have you tried so far?

Egg clean, port clean, all vacuum hoses have been replaced with clamps on them. It's holding 30 psi on fuel Gaulle, does not stumble on dump, replaced maf sensor and the

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

Also changed out the iat sensor. And no that's about it

Submitted: 8 months ago.Category: Ford
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Answered in 2 minutes by:
1/9/2018
Ford Mechanic: AMEDEE, FORD TECHNICIAN replied 8 months ago
AMEDEE
AMEDEE, FORD TECHNICIAN
Category: Ford
Satisfied Customers: 28,508
Experience: ASE CERTIFIED TECHNICIAN ADVANCED LEVEL SPECIALIST. Wisconsin certified emissions state inspector
Verified

Hello and welcome!

Thank you for your question. My name isCustomerand I will be happy to assist you today. I am reviewing the details now.

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Ford Mechanic: AMEDEE, FORD TECHNICIAN replied 8 months ago

Are you looking for some possible causes?

Would you be willing to speak on the phone?

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