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We are coming up with a computer code of P0171. But we

Customer Question
We are coming up...

We are coming up with a computer code of P0171. But we cannot seem to find the problem

Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix with a Ford. The Ford Mechanic I'm going to connect you with knows all the tricks and shortcuts. Tell me a bit more about what's going on so he can help you best.

We have put on a new o2 sensor, new mass air flow sensor, new plug wires, gas filter, air filter, and the check engine keeps coming on.

Mechanic's Assistant: Are you hoping to fix this yourself?

Hopfully

Mechanic's Assistant: Is there anything else important you think the Ford Mechanic should know about your Ford?

2008 F150

Submitted: 2 years ago.Category: Ford
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Answered in 3 minutes by:
2/21/2016
Ford Mechanic: A. Penland, Ford Senior Master Technician, ASE replied 2 years ago
A. Penland
A. Penland, Ford Senior Master Technician, ASE
Category: Ford
Satisfied Customers: 7,073
Experience: ASE Master Certified, ASE Advanced Gasoline Engine Performance
Verified

What engine does the F150 have?
The 4.2L V6

The 4.6L V8

The 5.4L V8

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