V6 S197 General Discussion This section is for technical discussions pertaining specifically to the V6 variation of the 2005 and newer Ford Mustang.

rev problems..

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Old Oct 10, 2005 | 10:08 PM
  #1  
maagster's Avatar
maagster
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Joined: May 2005
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Default rev problems..

ok guys.. check this out... I'm coming up to a stop light and slowly coming to a stop.... once i'm at a complete stop.. my car starts reving up to 2,000 and stays there... i'm like dude what the heck??? and throughout the day it will do it here and there??? what could be the problem is it normal???
Old Oct 11, 2005 | 01:21 AM
  #2  
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jthorn9
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Joined: Sep 2005
Posts: 15,480
From: Temple, Texas
Default RE: rev problems..

There are a number of things that could be wrong. First of all your ecu might of been misprogrammed and the idle settings are off, or theres an error in the ecu programming that is causing this. Another problem is that you might have some chip that has been dammaged to cause the problem. My best advice is to take it back to Ford and get them to look at it sice it still should be under warrenty. Don't worry I don't think the problem is too serious, but do get it looked at ASAP.
Old Oct 11, 2005 | 04:04 PM
  #3  
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ScottRNelson
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Joined: Jun 2005
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Default RE: rev problems..

Mine stays up around 1500-1800 rpms as I'm coming up to a stop, but then drops down to 1000 or so once I'm stopped. I find it terribly annoying, but the dealer says it's normal and there's nothing I can do. I would like to find out how to get the engine to drop to 1000 as soon as I let off of the gas. Anybody have any ideas other than "take it to a speed shop"?
Old Oct 11, 2005 | 07:02 PM
  #4  
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Professor Wizard
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Joined: Mar 2005
Posts: 3,441
From: Missouri
Default RE: rev problems..

Scott.. the answer is... Get a Tuner... XCal or Preditor... either will fix the accel and deceel delays.... you can also set your Netural and Drive idel speeds.
Old Oct 11, 2005 | 10:09 PM
  #5  
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jthorn9
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Joined: Sep 2005
Posts: 15,480
From: Temple, Texas
Default RE: rev problems..

Yea you can fix this problem with a tuner by reseting your idle poits so that your engine will operate at the new idle point instead of stock.
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