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Old 06-04-2011, 01:14 PM   #1
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K&N Cold Air Intake

I recently installed a K&N cold air intake on my 06 Mustang GT Convertible. I noticed a little after that the engine would idle up and down within 200 RPM's. Any suggestions as to why and if I need to do anything about this? Before the cold air intake, it never did this.
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Old 06-04-2011, 08:02 PM   #2
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Tuner needed
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Old 06-05-2011, 06:02 AM   #3
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Quote:
Originally Posted by xindepogx
I recently installed a K&N cold air intake on my 06 Mustang GT Convertible. I noticed a little after that the engine would idle up and down within 200 RPM's. Any suggestions as to why and if I need to do anything about this? Before the cold air intake, it never did this.
My buddy has an 06 GT with a K&N CAI. He hasn't tuned it & it's working just fine for him. Ask TexasBoneKing, if you get in his good graces, he "might" just help u out.
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Old 06-05-2011, 10:01 PM   #4
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Re: K&N Cold Air Intake

Quote:
Originally Posted by xindepogx View Post
I recently installed a K&N cold air intake on my 06 Mustang GT Convertible. I noticed a little after that the engine would idle up and down within 200 RPM's. Any suggestions as to why and if I need to do anything about this? Before the cold air intake, it never did this.
I would re-check everything.....sounds like you may have knocked a vacuum line loose somewhere or something.

-Will
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Old 06-07-2011, 09:14 AM   #5
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Thanks for all the help! I will get her tuned.
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Old 06-07-2011, 09:46 AM   #6
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Re: K&N Cold Air Intake

MOST (read that MOST not all) intakes for 05+ GT Mustangs require a tune to be safe and work right. You may have one that does not, but you need to find out. I am not sure on K&N... but if it doesnt require a retune I personally thing its not doing a good enough job obviously. You can pick up TONS of power from a good intake and a tune... if the tune is done right (bamachips from american muscle have a good reputation on 05+ gt's)
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Old 06-07-2011, 09:53 AM   #7
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That's what I was thinking. I did some research on the Bama chips and found them to be real good. Good to hear more positive comments on those chips. The engine is only idling within 200 RPMs so nothing serious or threatening to my knowledge. There's definitely more power and more of a big boy growl as I hit the throttle. Thanks for all of your help.
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Old 06-24-2011, 10:16 PM   #8
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Mine used to do that. I cleaned the throttle body and mass air sensor. They sell the sensor spray at most parts stores and carb cleaner will take care of throttle body.
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Old 06-25-2011, 09:02 AM   #9
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Quote:
Originally Posted by xindepogx
I recently installed a K&N cold air intake on my 06 Mustang GT Convertible. I noticed a little after that the engine would idle up and down within 200 RPM's. Any suggestions as to why and if I need to do anything about this? Before the cold air intake, it never did this.
Original maf? And also did you disconnect the battery at any point? And no a tune is not required.
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Old 06-25-2011, 09:03 AM   #10
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Quote:
Originally Posted by SpectorV
MOST (read that MOST not all) intakes for 05+ GT Mustangs require a tune to be safe and work right. You may have one that does not, but you need to find out. I am not sure on K&N... but if it doesnt require a retune I personally thing its not doing a good enough job obviously. You can pick up TONS of power from a good intake and a tune... if the tune is done right (bamachips from american muscle have a good reputation on 05+ gt's)
Do you know why some cai require a tune?
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Old 06-25-2011, 09:48 AM   #11
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Quote:
Originally Posted by Texastboneking

Do you know why some cai require a tune?
Can I use a lifeline?
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Old 06-25-2011, 09:55 AM   #12
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Originally Posted by Pete07GT

Can I use a lifeline?
You have already used your "call Obama for help" and "ask the ricers" lifelines. All you have left is "pull it out your a$$". So sure go ahead
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Old 06-25-2011, 09:58 AM   #13
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Quote:
Originally Posted by Texastboneking

You have already used your "call Obama for help" and "ask the ricers" lifelines. All you have left is "pull it out your a$$". So sure go ahead
I have never spoken to the president nor have I phoned a ricer. I was going to ask if the tune was required because of the MAF sensor throwing a CEL?
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Old 06-25-2011, 10:01 AM   #14
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Quote:
Originally Posted by Pete07GT

I have never spoken to the president nor have I phoned a ricer. I was going to ask if the tune was required because of the MAF sensor throwing a CEL?
No but it is because of the maf. Not throwing a cel though. Would you like anoither guess?
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Old 06-25-2011, 10:05 AM   #15
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Quote:
Originally Posted by Texastboneking

No but it is because of the maf. Not throwing a cel though. Would you like anoither guess?
No Trent, let's hear it.
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Old 06-25-2011, 10:16 AM   #16
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Quote:
Originally Posted by Pete07GT

No Trent, let's hear it.
Because you are going to a bigger mass air flow and the computer can't frun it without a tune. The cai itself don't need a tune. It's the maf. The car will die as soon as you start it without a tune because it reads the wrong air flow . You were close though
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Old 06-25-2011, 10:20 AM   #17
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Quote:
Originally Posted by Texastboneking

Because you are going to a bigger mass air flow and the computer can't frun it without a tune. The cai itself don't need a tune. It's the maf. The car will die as soon as you start it without a tune because it reads the wrong air flow . You were close though
Is this why Ford upgraded the onboard computers starting in 2010?
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Old 06-25-2011, 10:22 AM   #18
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Quote:
Originally Posted by Pete07GT

Is this why Ford upgraded the onboard computers starting in 2010?
No I think most companies did that. It's just something new they did. But that's not the reason.
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