Working out some bugs with idle

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Blakonblak94

New Member

Jan 31, 2010

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Mar 22, 2010

#1

• Mar 22, 2010

• #1

So here is the situation. Hci swap. Im having an issue setting my idle. It idles around 1100, and it was hanging really bad earlier and even got to around 2500 at some points. I believe I have a leak somewhere under the upper plenum, but I could be wrong. That will be my first check. Timing is set to 13 but Ive been told that being a tooth off can mess things up. As well last night after a decent drive my headers were glowing a tad, but the temp guage was reading cool. Any ideas on the situation?

 

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Blakonblak94

New Member

Jan 31, 2010

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Mar 22, 2010

#2

• Mar 22, 2010

• #2

Nobody?

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

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Mar 22, 2010

#3

• Mar 22, 2010

• #3

No info about the new parts? What did you do cam wise and tune wise?

It could be a vac leak or an IAC issue but there's no way to know without a lot more info.

Good luck.

 

BlackVert

15 Year Member

Oct 3, 2003

5,589

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98

Bethesda, MD

Mar 22, 2010

#4

• Mar 22, 2010

• #4

while idling, try spraying some carb cleaner at different connections around the intake. if the idle changes, then you are close to a vacuum leak

 

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2002BLGT

Well-Known Member

Dec 18, 2003

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Bedford VA

Mar 22, 2010

#5

• Mar 22, 2010

• #5

If you have the Quarterhorse you need to datalog the fuel trims at idle , if you are using BE2010 try using the MAF transfer autotune function

 

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Blakonblak94

New Member

Jan 31, 2010

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Mar 22, 2010

#6

• Mar 22, 2010

• #6

Its hci, trickflow 170s, with a 220/220 .525 lift cam. Its fox style no elbow. The tps is set at .98, and I know the IAC is working. It currently has 19's on it.

 

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Blakonblak94

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Jan 31, 2010

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Mar 22, 2010

#7

• Mar 22, 2010

• #7

Oh and what will this auto tune feature do?

 

GTA_V6_Mustang

Active Member

Nov 29, 2004

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Miami, FL

Mar 23, 2010

#8

• Mar 23, 2010

• #8

I would like to say that if your headers are starting to glow you might be pretty lean, cam timing off, or ignition timing retarded to far but you said its 13* advanced so.... You should really try the carb cleaner route to see if you can find a vacuum leak. I actually had a problem once where I had the intake off and when I put everything back together because I used original injectors and forgot to spray some silicone on o-rings when I put it back in the lower and started it up had a nasty vacuum leak through there actually. Food for thought...