I think I have an idling issue after service and a road trip. - Mustang Evolution

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Old 01-02-2015, 01:39 PM   #1
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I think I have an idling issue after service and a road trip.

I had service done yesterday oil change, point inspection and tire rotation. Well after getting to Fort Carson form Fort Sill it's been doing this. The elevation here is 6,000ft so I'm wondering would that have anything to do with it. I know it feels like I've lost power since I got here though.



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Old 01-03-2015, 08:42 PM   #2
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If you moved to a 6K higher location, remove the negative cable from the battery for 20mins or more. Put back on and drive several cycles to get the computer to re-learn your location sooner.

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Old 01-03-2015, 10:25 PM   #3
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Well, I drove up hill and down with 5000 feet between lows and highs on a recent road trip and the car did not miss a beat the whole time. Something is up here, definitely. I'd be thinking you should focus your attention on the airbox since they would have touched that during the inspection. Make sure it isn't loose and that all the couplers are snug and positioned properly for a good seal.
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Old 01-04-2015, 12:23 AM   #4
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I'll do both of these tomorrow

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Old 01-04-2015, 08:10 AM   #5
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Quote:
Originally Posted by 5LHO View Post
Well, I drove up hill and down with 5000 feet between lows and highs on a recent road trip and the car did not miss a beat the whole time. Something is up here, definitely. I'd be thinking you should focus your attention on the airbox since they would have touched that during the inspection. Make sure it isn't loose and that all the couplers are snug and positioned properly for a good seal.
I've had altitude issues before, but making sure the air box is OK is very sound advise.
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Old 01-04-2015, 08:14 AM   #6
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I've had altitude issues before, but making sure the air box is OK is very sound advise.
I hear you and I'll do just that. Fort Sill is only a little over 1000ft. Moving here is a big difference because it's 6000+.

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Old 01-04-2015, 11:45 AM   #7
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I checked the air box and connections. Everything was good. So I disconnected the negative battery cable for 40 minutes and took it for a drive. Everything's back to normal now. Thanks for the advice guys. Was going to buy a CAI and tuner because I thought it was and air problem. But that $700+ can go towards my wheels, tires, and maybe a ford racing suspension system.

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Old 01-07-2015, 07:39 AM   #8
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Old 01-07-2015, 07:47 AM   #9
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Should such an issue come back, and the airbox is tight an no leaks on any hoses that to it, it might point to an issue in the part the car uses to determine barometric pressure. {I am still studing the Ford Emissions Systems tech document to find out which emissions part on the Coyote motors does that, it can be interpreted from many}

One good tool to have is an App for your Android phone called Torque. There are others like dash command [eye candy] but Torque is a real tool. About $5 from the Google Store. It can read codes, clear codes, shows the status of your On Board Emissions testing (that the state inspectors read) etc. Unlike others, it will shos codes "pending" that have not yet tripped the CEL light. It will also dig deep and show "Historic codes" that have been previously cleared. When I bought my 2013 GT with 5K on the clock, the historic codes showed it had the famious misfire code at one time and it appeared the dealer cleared it after probably running the misfire sensor re-learn procedure in their Ford Pro cal.

Also data log your engine points like MAF, AFR, RMP spped you name it . Also puts nice dashboards of electronic gagues on the screen. I have a 7" table I velco over my radio console and it looks stock almost. I use that to data log, kewl dashboard displays, and also GPS navigate via my cell phones hot spot using google maps.

you need a bluetooth OBDII scanner, I have used this one for a few years nore:
http://www.amazon.com/iKKEGOL-Blueto...dp/B00EM8E3HM/

Here is another one, but no Prime:
http://www.amazon.com/Vgate-Bluetoot...dp/B00AAOOQJC/

What ever yuo do, dont install the software that comes with it, china based, just use Andriod or PC apps for Bluetooth scanners.
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Old 01-07-2015, 06:22 PM   #10
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xxx v

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