IAB-IAC Function and Idle Set Procedure

Anything technical worth keeping around related to EEC Tuning or just general engine tech info.

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tmoss
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IAB-IAC Function and Idle Set Procedure

Post by tmoss » Wed Feb 04, 2009 8:44 pm

Knowing how this device works can help you trouble shoot and set your idle.
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IAC-IAB Function and Idle Speed Setting.doc
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cgrey8
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Re: IAB-IAC Function and Idle Set Procedure

Post by cgrey8 » Sat Feb 07, 2009 4:17 pm

I do want to state that this article appears to assume a stock tune controlling the engine it was tuned from the factory for (i.e. a Mustang GT EEC like an A9L or A9P controlling a stock Mustang GT 5.0L). As most of us DIY tuners know, this procedure doesn't work when the tune you are working with does NOT "fit" the engine you have due to modifications you've made (i.e. different injectors, cam, TB, MAF, heads, displacement, etc). Thus why idle tuning is such a popular topic for us DIY tuners on this forum.
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Re: IAB-IAC Function and Idle Set Procedure

Post by tmoss » Sat Feb 07, 2009 4:30 pm

cgrey8 wrote:I do want to state that this article appears to assume a stock tune controlling the engine it was tuned from the factory for (i.e. a Mustang GT EEC like an A9L or A9P controlling a stock Mustang GT 5.0L). As most of us DIY tuners know, this procedure doesn't work when the tune you are working with does NOT "fit" the engine you have due to modifications you've made (i.e. different injectors, cam, TB, MAF, heads, displacement, etc). Thus why idle tuning is such a popular topic for us DIY tuners on this forum.
That is correct, it does assume a stock tune.

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