Search



Go Back   MustangForums.com > Ford Mustang Tech > 5.0L (1979-1995) Mustang
Sign in using an external account
Register Forgot Password?
Search

5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Sponsored by Weld Racing


Welcome to Mustang Forums!
Welcome to Mustang Forums.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread
Old 04-20-2014, 03:33 PM   #11
rockinh
 
rockinh's Avatar
 
Join Date: Apr 2014
Vehicle: 1995 Ford Mustang GT
Location: GA
Posts: 10
Default

Im gonna test the tps as soon as I get home tomorrowand if that dont fix it ill get a iac.
This ad is not displayed to registered or logged-in members.
Register your free account today and become a member on Mustang Forums!
rockinh is offline   Reply With Quote
Old 04-22-2014, 11:30 AM   #12
rockinh
 
rockinh's Avatar
 
Join Date: Apr 2014
Vehicle: 1995 Ford Mustang GT
Location: GA
Posts: 10
Default

tps voltage was 1.1 so i set it but it is still idling high. Should i test the IAC before reseting the idle if i need to do that ill have to research how to do that.
rockinh is offline   Reply With Quote
Old 04-22-2014, 11:54 AM   #13
dawson1112
5th Gear Member

 
Join Date: Jul 2012
Vehicle: 1990 lx hatch 5.0
Location: ohio
Posts: 2,562
Default

You need to check the tps voltage before and after , since you will be adjusting that idle screw to bring the idle down to where you want it for the reset.


When you adjust that Idle screw it also changes the tps voltage. I suspect that at 1.1 volts you could have dropped the idle down till you were in the .94-.99 range and it would have been fine.

I have had times when doing a base idle reset did not take the first time and had to be repeated a few times.
__________________

Last edited by dawson1112; 04-22-2014 at 11:56 AM.
dawson1112 is offline   Reply With Quote
Old 04-22-2014, 04:45 PM   #14
rockinh
 
rockinh's Avatar
 
Join Date: Apr 2014
Vehicle: 1995 Ford Mustang GT
Location: GA
Posts: 10
Default

I could only get it down to .99 and it was still idling at 1000 rpm. So I'm taking it off and going to try to drill the holes out just a bit and try to get it closer to .9 that seems like it might do the trick or at least i hope so.
rockinh is offline   Reply With Quote
Old 04-22-2014, 05:05 PM   #15
rockinh
 
rockinh's Avatar
 
Join Date: Apr 2014
Vehicle: 1995 Ford Mustang GT
Location: GA
Posts: 10
Default

I got the voltage of the fps to .9 and the idle is still right at 1000 rpm. I checked the voltage on the IAC while running. The white wire w/ blue stripe has 13.4 volts and the red wire has 14.4 volts. Is that normal?
rockinh is offline   Reply With Quote
Old 04-22-2014, 06:37 PM   #16
dawson1112
5th Gear Member

 
Join Date: Jul 2012
Vehicle: 1990 lx hatch 5.0
Location: ohio
Posts: 2,562
Default

IF your at 1000 rpm I think a slight turn of the idle screw should get you down to about 850 easy.
__________________
dawson1112 is offline   Reply With Quote
Old 04-25-2014, 08:43 AM   #17
rockinh
 
rockinh's Avatar
 
Join Date: Apr 2014
Vehicle: 1995 Ford Mustang GT
Location: GA
Posts: 10
Default

iv gotten it down to idle about 800-900 but it is still wanting to hang at 1300 for a few seconds before dropping down to the 800-900. also it won't drop down to the low idle speed until the car is fully stopped and in neutral with clutch released.
rockinh is offline   Reply With Quote
Old 04-25-2014, 09:45 AM   #18
dawson1112
5th Gear Member

 
Join Date: Jul 2012
Vehicle: 1990 lx hatch 5.0
Location: ohio
Posts: 2,562
Default

My 94 was like that too for a while. You just have to drive it for a while and let the adaptive learning of the ecm do its thing. I suspect it will likely get better with the more miles you put on it. The computer is programmed to keep a higher idle between shifts , once it learns how you drive it will likely level it self out.
__________________
dawson1112 is offline   Reply With Quote
Old 04-25-2014, 09:45 AM
MustangForums
Ford Mustang




Paid Advertisement

 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Advertising

Featured Sponsors
Vendor Directory
New Sponsors
All times are GMT -5. The time now is 10:12 PM.

© Internet Brands, Inc.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.

This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company
Emails Backup