Ranger-Forums - The Ultimate Ford Ranger Resource

Ranger-Forums - The Ultimate Ford Ranger Resource (https://www.ranger-forums.com/)

- General Ford Ranger Discussion (https://www.ranger-forums.com/general-ford-ranger-discussion-15/)

- - resetting check engine light? (https://www.ranger-forums.com/general-ford-ranger-discussion-15/resetting-check-engine-light-131254/)

j_huhnke

02-13-2012 10:06 AM

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

OTRtech

02-13-2012 10:09 AM

Pull the negative battery cable off for fifteen minutes.

j_huhnke

02-13-2012 10:12 AM

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?

OTRtech

02-13-2012 10:17 AM

That's normal during real cold weather.

j_huhnke

02-13-2012 10:19 AM

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

OTRtech

02-13-2012 10:37 AM

You stated it was a few seconds.
Make up your mind.
Then go clean the IAC valve.

j_huhnke

02-13-2012 12:08 PM

It revs up and down up and down up and down so on and then idles normal

All times are GMT -6. The time now is 11:11 PM.