RPM's hanging - Mustang Evolution

Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1979-1995 Mustang GT



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 07-07-2012, 07:17 PM   #1
Registered Member
Regular
 
rwsmith3623's Avatar
 
Join Date: Jun 2012
Region: North Carolina
Posts: 134
RPM's hanging

Car is idling at around 1k, which seems higher than normal, also at idle when I step on it a little, or any at all for that matter the rpms hang there for quite awhile. I'd say 3-4 seconds. I moved awhile back so I had to get in contact with a new shop, took it there and they say it's doing it because it's running pretty lean an it needs tuned. Just wanted some feed back on what you guys thought before I pay 700 to get it retuned. I just had it tuned about 11 months ago. With that being said I just got back from deployment so it sat for about 8 months. What do you guys think?
rwsmith3623 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 07-07-2012, 07:28 PM   #2
Road Trip!
 
Join Date: Apr 2011
Region: Indiana
Posts: 8,044
Clean and adjust iac,maf, and tps.

There is a good article in the useful mustang Info thread in the sticky section that covers the infamous hanging/surging idle.
dreamstang is offline   Reply With Quote
Old 07-08-2012, 07:20 AM   #3
Road Trip!
Supporter
 
Join Date: Jun 2006
Region: Missouri
Posts: 8,779
Re: RPM's hanging

Quote:
Originally Posted by rwsmith3623 View Post
Car is idling at around 1k, which seems higher than normal, also at idle when I step on it a little, or any at all for that matter the rpms hang there for quite awhile. I'd say 3-4 seconds. I moved awhile back so I had to get in contact with a new shop, took it there and they say it's doing it because it's running pretty lean an it needs tuned. Just wanted some feed back on what you guys thought before I pay 700 to get it retuned. I just had it tuned about 11 months ago. With that being said I just got back from deployment so it sat for about 8 months. What do you guys think?
I'd find a different shop. Sounds like they just want to rip you off to me.


If it isn't forced induction or nitrous fed, then you don't need a $700 "tune".
That's almost the cost of an AFM PMS piggy back tuner and with one of those and a Wideband you could tune it yourself as needed without it costing you several hundred dollars each time.


Follow dreamstangs suggestions and you can probably work it out.
Trojan Horse is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 07-08-2012, 10:54 AM   #4
Registered Member
Regular
 
rwsmith3623's Avatar
 
Join Date: Jun 2012
Region: North Carolina
Posts: 134
Quote:
Originally Posted by Trojan Horse

I'd find a different shop. Sounds like they just want to rip you off to me.

If it isn't forced induction or nitrous fed, then you don't need a $700 "tune".
That's almost the cost of an AFM PMS piggy back tuner and with one of those and a Wideband you could tune it yourself as needed without it costing you several hundred dollars each time.

Follow dreamstangs suggestions and you can probably work it out.
It is forced induction. I run a v4 x-trim. I'll follow what dreamstang said. However, even if it does end up needing tuned, 700 seems crazy. My old shop National Speed would give whatever dyno time necessary, and a custom 4 tune for $500 flat. Seems most shops normally charge 5-600.
rwsmith3623 is offline   Reply With Quote
Old 07-08-2012, 09:31 PM   #5
Road Trip!
Supporter
 
Join Date: Jun 2006
Region: Missouri
Posts: 8,779
Re: RPM's hanging

Quote:
Originally Posted by rwsmith3623 View Post
It is forced induction. I run a v4 x-trim. I'll follow what dreamstang said. However, even if it does end up needing tuned, 700 seems crazy. My old shop National Speed would give whatever dyno time necessary, and a custom 4 tune for $500 flat. Seems most shops normally charge 5-600.
To me even that is excessive, which is why I bought the PMS and I'm going to get a Wideband to go along with it. At around $1200 I'd be approximately at the cost of 2 shop tunes, then from there on out any tuning I need to do will essentially be free and I will be able to monitor and make corrections as I need to, instead of finding out the hard way that the engine is out of tune and damaging something.
Trojan Horse is offline   Reply With Quote
Old 07-08-2012, 09:38 PM   #6
Road Trip!
 
Join Date: Apr 2011
Region: Indiana
Posts: 8,044
Quote:
Originally Posted by Trojan Horse

To me even that is excessive, which is why I bought the PMS and I'm going to get a Wideband to go along with it. At around $1200 I'd be approximately at the cost of 2 shop tunes, then from there on out any tuning I need to do will essentially be free and I will be able to monitor and make corrections as I need to, instead of finding out the hard way that the engine is out of tune and damaging something.
i agree. i hear of people getting dyno tunes all the time for 4-500$. im not sure if i ever even heard of someone paying that much unless itminclude more parts.
dreamstang is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1979-1995 Mustang GT

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 On
Refbacks are Off


» Like Us On Facebook



08:40 PM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.