Ranger-Forums - The Ultimate Ford Ranger Resource

General Ford Ranger Discussion General discussion of the Ford Ranger that does not fit in any other sub-forum.

resetting check engine light?

Thread Tools
 
Search this Thread
 
Old Feb 13, 2012
Share
  #1  
j_huhnke's Avatar
Thread Starter
|
Member
Joined: Mar 2011
Posts: 45
Likes: 0
From: georgia
resetting check engine light?
How do you reset the light? It pulled the codes po171 and po174 and I seen on here its usually that small 90 degree hose and it had a big hole in it so I replaced it now I just need to reset the light
 
Reply
0
Old Feb 13, 2012
Share
  #2  
OTRtech's Avatar
Member
Joined: Mar 2007
Posts: 2,598
Likes: 14
From: Upstate,NY
Pull the negative battery cable off for fifteen minutes.
 
Reply
1
Old Feb 13, 2012
Share
  #3  
j_huhnke's Avatar
Thread Starter
|
Member
Joined: Mar 2011
Posts: 45
Likes: 0
From: georgia
Alright I appreciate it and also when I start my truck after its been sitting a while the idle jumps from like 400 to about 1500 for a few seconds? Any idea on what that is?
 
Reply
0
Old Feb 13, 2012
Share
  #4  
OTRtech's Avatar
Member
Joined: Mar 2007
Posts: 2,598
Likes: 14
From: Upstate,NY
That's normal during real cold weather.
 
Reply
0
Old Feb 13, 2012
Share
  #5  
j_huhnke's Avatar
Thread Starter
|
Member
Joined: Mar 2011
Posts: 45
Likes: 0
From: georgia
Really its never done it before till maybe a month ago usually it would just go up to 1500 and come back down to normal
 
Reply
0
Old Feb 13, 2012
Share
  #6  
OTRtech's Avatar
Member
Joined: Mar 2007
Posts: 2,598
Likes: 14
From: Upstate,NY
You stated it was a few seconds.
Make up your mind.
Then go clean the IAC valve.
 
Reply
0
Old Feb 13, 2012
Share
  #7  
j_huhnke's Avatar
Thread Starter
|
Member
Joined: Mar 2011
Posts: 45
Likes: 0
From: georgia
It revs up and down up and down up and down so on and then idles normal
 
Reply
0
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Check Engine & Check Pants!
Brian5792
4.0L OHV & SOHC V6 Tech
3
Jun 16, 2019 02:06 AM
99 Ranger: engine wont turn over, has power, and no check engine light
sprx26
General Technical & Electrical
1
Mar 19, 2014 11:07 AM
o/d light, check engine light and rough idle
wtf man
2.9L & 3.0L V6 Tech
8
Feb 23, 2014 12:39 PM
problem with engine and check engine light
warner.325
SOHC - 2.3L & 2.5L Lima Engines
5
Dec 9, 2009 03:48 AM
spedometer out + ABS light + check engine light
joey v
General Technical & Electrical
13
Jun 17, 2008 07:17 PM
Back to Subforum
General Ford Ranger Discussion
View Next Unread
DIY color match...curious




Advanced Search

All times are GMT -6. The time now is 05:53 PM.