☰
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
Erratic, rough idle only when warm, sets: p0171
0
like
0
dislike
265
views
asked
Jan 11, 2017
by
Bill
Rough idle, only @ op temp. Comes & goes. Idle drops 150-200 rpm, shudders. Sets code p0171: w/ increasing frequency: now every 20 mi. Or less. Replace m a f, I m r c (both), I m gaskets (upper & lower) & bolts, air filter, plugs, wires. Cannot find any vac leaks @ pcv, power brake hose or I'm gaskets. E g r & d p f e seem ok. Only problem I found: I a t sensor resistance increased when warmed up. Specs said it should decrease. Could this contribute to rough idle or code? HELP!
Vehicle:
1998, ford, windstar, 3.8
rough-idle
erratic-idle
p0171
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
0
Answers
Related questions
0
like
0
dislike
1
answer
343
views
Erratic idle: only when @ op temp. Sets p0171 w/ increasing frequency
asked
Jan 24, 2017
by
Frustrated ford owner
p0171
erratic-idle
rough-idle
0
like
0
dislike
1
answer
258
views
What code does bad gas cap seal set? Symptom: Erratic idle
asked
Jan 30, 2017
by
Frustrated ford owner
erratic-idle
gas-cap
p0171
0
like
0
dislike
1
answer
233
views
Erratic idle, only when engine warmed up
asked
Dec 24, 2016
by
Bill
rough-idle
ford
0
like
0
dislike
1
answer
238
views
Erratic, rough idle: only when @ operating temp
asked
Jan 7, 2017
by
Bill
rough
idle
erratic
p0171
0
like
0
dislike
1
answer
265
views
i have a 2005 mitsubishi galant . when idleing i stall out only when engine is warm and at idle
asked
Jul 19, 2017
by
anonymous
code
p0171
p0174
p0431
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
...