Error Code(P0506) - please help - Idle Control System RPM Lower Than Expected

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8/29/06, 07:07 AM

Dubl10

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Error Code(P0506) - please help - Idle Control System RPM Lower Than Expected

Hello, my car is throwing a CEL again. It's a new error code, which is:

P0506 Idle Control System RPM Lower Than Expected

How can this be fixed, can a tune adjustment be done to fix this or what? Is this something that my tune isn't handling right?

I have an 05 Mustang GT, automatic transmission.

My mods are:

TBS - throttle body spacer
Steeda CAI w/ a Tune, 90mm
SLP Loudmouth exhaust
Kooks Long tube headers w/ catted x-pipe.

In that order of when I put things on.

Now someone mentioned this to me, let me know what everyone else's thoughts are:

Quote:

I was getting the same code and tried everything to rule out the CIA or the filter the first dealer tried to blame the Code on. Took the car to a different Dealer and they replaced the Throtle Body , under warrenty, becuz it houses the Idle Control part. Been driving the car for two weeks no codes , so far.
Just remember to remove your CIA , if possible, becuz they will try to blame the problem or say VOID Warrenty due to your MODS.

Hey, I had the same problem and the Dealer replaced the Idle Control sensor , which meant replacing the entire throtle body. Just thought I tell you.

Good Luck.

Is that something I'm going to have to do? instead of just correcting this in a tune? I hope i odn't have to replace my throttle body, that would suck, plus, i don't know if I can get that under warranty, with all my mods, I mean, I do know i'll have to take out my CAI, but i don't want to do that.

anyway, does anybody know for sure what needs to be done? just a simple tune adjustment or replacing the idle control sensor?

Should I just take it to the dealership and have them look at it, even with my mods on?

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8/31/06, 10:28 AM

deepblue

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hi there

i'm Giampaolo from Italy and i have the saem problem to mine GT 05 Autom.trans.
Usually with Air cond in but 2 times also without.
so if you know where could be the problem please help me.
i have set the engine by

Predatoe 93 oct
Steeda Cai 90 mm
Am.Thunder Mufflers

Honestly i think the problem should be the TUNE because 'Bone stock ' this trouble it doesn'e exist

ciao Giampaolo

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9/1/06, 07:40 AM

Dubl10

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that's what i'm thinking also. I think it's in my tune too. I could go get it dyno'd, but i don't feel like spending 450 bucks to do that when I bought my own tuner, you know. If i find out anything i'll let you know.

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9/1/06, 08:33 AM

deepblue

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ok thank you in advance. ciao G.

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9/12/06, 11:25 PM

Zeio

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I had the exact same code and it was fixed when I changed my tune to Bamachips 91 torque. No problems now, and I was experiencing the same thing, with or without AC, gone now and i'm happy.