[copper top]

Originally Posted by Kylejb2663

The computer is not that smart to correct a bad idle, it can try to help it, which is why you get surging. It tries to correct it, then can't, so surges, and then tries to correct again but cant.

What I did was take both terminals off the battery, tapped them together to discharge everything and if you have a cap for subs or an amp make sure you disconnect the cap and touch those two wires together also while the battery is disconnected. Re-connect the battery and drive it until the idle evens out and stops surging hence the computer will have learned by then...also like stlwagon mentioned, it has to do a complete cold/hot cycle.

I called the dealer and they said that they use their computer to set the idle and when i asked about the method you explained they had not heard of it. He said, not to say that it isn't correct but they have never done it.

Why wouldn't the performance shops now about this and let me know? I have had it at 3 different shops.

I will disconect the battery tonight and reconect in the morning to insure that the car is as cold as possible and go through the steps. Had the battery tested along with the altenator and they were both good, however I may need to add water.

[Kylejb2663]

Dealers most certainly do not use their computers to set the idle - maybe from the factory, but definately not after having the battery disconnected.

It sounds like they are trying to get you to pay to bring it in so they can perform the same procedure.. I will get you the article from the Ford Service Manual that I have- It's the same one that all the technicians at Ford use... But follow the procedure I outlined and let me know the outcome... remember to touch both terminals together to discharge the computer...

[copper top]

Well I swaped my TB with my girlfriends 08 and it solved the problem. so I went to the dealership and bought a new one. now all i have to do is get it back to the shop to recheck the tune sinces it was tuned with the old TB, and have my clutch re bled. It has been slipping since the new clutch. anyone else having problems with spec 2 clutches?

[stlwagon]

Originally Posted by copper top

Well I swaped my TB with my girlfriends 08 and it solved the problem. so I went to the dealership and bought a new one. now all i have to do is get it back to the shop to recheck the tune sinces it was tuned with the old TB, and have my clutch re bled. It has been slipping since the new clutch. anyone else having problems with spec 2 clutches?

Good deal... Don't think you need to worry about anything in the tune though.

[copper top]

I know a guy in my Mustang club that has a GT500 and just put the bigger Whipple on and is pushing 700 RWHP and is going to go with a differant clutch. He is offering his stock clutch to me for free. it only has 2000 miles on it. does any one see a problem with swaping out my spec 2 with the GT500 clutch?

[stlwagon]

Originally Posted by copper top

I know a guy in my Mustang club that has a GT500 and just put the bigger Whipple on and is pushing 700 RWHP and is going to go with a differant clutch. He is offering his stock clutch to me for free. it only has 2000 miles on it. does any one see a problem with swaping out my spec 2 with the GT500 clutch?

You'll need the flywheel too.

[copper top]

The last piece to the puzzel was found today. while looking through a mustang mag. there was a photo of an engine bay with a vortec setup, and I noticed that the MAF sensor was in a different location. theirs is directly behind the air filter and mine is 3 inches away from where the bypass valve redirects the discharged air back to the front side of the blower. that would explain all the idle/surging problems that i had. Word to the wise verify the credentials of any high performance shop before you let them touch your car. I'm going to reposition the sensor tonight and see how it drives tomorrow.

Thanks to every one that shared their advise.

[stlwagon]

Originally Posted by copper top

The last piece to the puzzel was found today. while looking through a mustang mag. there was a photo of an engine bay with a vortec setup, and I noticed that the MAF sensor was in a different location. theirs is directly behind the air filter and mine is 3 inches away from where the bypass valve redirects the discharged air back to the front side of the blower. that would explain all the idle/surging problems that i had. Word to the wise verify the credentials of any high performance shop before you let them touch your car. I'm going to reposition the sensor tonight and see how it drives tomorrow.

Thanks to every one that shared their advise.

I've got to see a picture of how they did that.

[stlwagon]

One more thing... Clock the MAF housing so the sensor is at 7 o'clock vs the Vortech recommended 10 o'clock.

[copper top]

why 7 vs. 10. I'll try and get a pic up soon.

Thanks

[copper top]

this is an old pic but the possition of the MAF has not changed since I put on the after cooler.

[stlwagon]

Originally Posted by copper top

why 7 vs. 10. I'll try and get a pic up soon.

Thanks

It helps reduce air turbulence in the housing.

Originally Posted by copper top

this is an old pic but the possition of the MAF has not changed since I put on the after cooler.

Wow, your installer clearly can follow directions or just plain didn't read them.

[copper top]

repossitioned the MAF and wha la, the care drives as advertised. amazing what happens when the parts are installed correctly. all the problems that i have been having are finely fixed except a squel from the clutch if i take off hard. the heat may have some thing to do with that.

[stlwagon]

Fantastic... Glad you found that picture!

[sqidd]

Originally Posted by copper top

I know a guy in my Mustang club that has a GT500 and just put the bigger Whipple on and is pushing 700 RWHP and is going to go with a differant clutch. He is offering his stock clutch to me for free. it only has 2000 miles on it. does any one see a problem with swaping out my spec 2 with the GT500 clutch?

So you don't have to take it back apart again soon I would throw one of the better slave cylinders at it.