1 like 0 dislike
515 views
by

I have a 1999 Ford F250 5.4L repair solutions for codes p0171 & p0174?

Vehicle: 1999 Ford F250 5.4L

2 Answers

1 like 0 dislike
by (13.5k points)
 
Best answer
Hi there,

The most common cause when you have both codes together is either a bad mass air flow sensor or low fuel pressure. Most common however is the maf sensor.
0 like 0 dislike
by (8.3k points)
P0171 FORD - Fuel Injection System Too Lean Bank 1
Read more: https://www.autocodes.com/p0171_ford.html

P0174 FORD - Fuel Injection System Too Lean Bank 2
Read more: https://www.autocodes.com/p0174_ford.html

Related questions

1 like 0 dislike
1 answer 640 views
1 like 0 dislike
1 answer 1.3k views
0 like 0 dislike
1 answer 2.4k views
1 like 0 dislike
2 answers 350 views

36.2k questions

32.2k answers

1.3k comments

22.8k users

Need A Repair Shop?
Find local automotive repair shops in your area.
Does your car have Safety Recalls? → Check here
...