☰
Find a Shop
|
Search Codes
Search Codes
Ask Your Car Question
Find a Shop
Cars Articles
Cars Technical Articles
Cars Recalls
Cars Common Problems
Cars Safety Rating
Cars MPG
Cars News
2024 Cars MPG
Cars Test Game
For Shop Owners
Login
Remember
Register
Questions
Hot!
Unanswered
Tags
Users
Ask a Question
Ask a Question
Replaced intake gaskets, isolater bolts, MAF, Egr and solenoid. New pcv valve and hose.
0
like
0
dislike
309
views
asked
Jan 18, 2017
by
Tad
Replaced everything associated with 171, 174 codes and still get service engine soon light.
Vehicle:
03 F150 2wd 4.2 V6
p0171
p0174
engine
code
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
0
like
0
dislike
answered
Jan 19, 2017
by
Reynaldo
(
13.4k
points)
When everything has been tried and a fuel trim lean is just too elusive, try this use a fuel injector cleaner adding into the fuel tank is also a good concepts, Usually a top end cleaning is what is commonly used, we where able to restore the fuel trim doing this
Please
log in
or
register
to add a comment.
Related questions
0
like
0
dislike
1
answer
588
views
Brand new intake manifold gaskets yesterday
asked
Oct 27, 2018
by
Willy84
(
101
points)
p0171
p0174
p0300
0
like
0
dislike
1
answer
515
views
P1505, P0171, P0174 on 1997 Mazda b4000. replaced PCV, Tried new IAC, runs ok sometimes, except under load
asked
Jul 2, 2017
by
anonymous
p0171
p0174
p1505
0
like
0
dislike
0
answers
312
views
2002 BMW 530i (E-39) 6 Cly-3 Liter M-54 engine Crankcase ventilation valve hose
asked
Aug 15, 2017
by
anonymous
530i
e-39
m-54
p0174
p0171
0
like
0
dislike
1
answer
1.5k
views
Can EGR vacuum solenoid vacuum leak cause po171 and po174 codes?
asked
Dec 8, 2018
by
Brad
p0171
p0174
0
like
0
dislike
1
answer
3.4k
views
Do 2012 hyundai elantra have MAF or MAP? And where it is located.
asked
Jan 9, 2018
by
Saul
p0171
p0174
36.2k
questions
32.2k
answers
1.3k
comments
22.8k
users
Need A Repair Shop?
Find local automotive repair shops in your area.
AutoCodes.com Shops
Does your car have
Safety Recalls?
→ Check here
Related Information
-
Car TSB
-
Car Recalls
-
Car Common Problems
-
Car Safety Rating
-
Car Technical Articles
-
OBDII FAQ
-
OBDII Components
-
2024 Cars MPG
All OBDII Codes
-
Top 25 Codes
-
Latest Codes
-
All OBDII Codes
-
Powertrain (P) Codes
-
Network (U) Codes
-
Body (B) Codes
-
Chassis (C) Codes
AutoCodes.com
Engine-Codes.com
Infinitihelp.com
Nissanhelp.com
About AutoCodes.com
Privacy Policy
Terms and Conditions
© 2010-22 AutoCodes.com
...