Car dying additional info.

[the Fredericks]

There is an IAC calibration setting on many cars; you set the idle bleed so
that the IAC counts are at a specified value at idle.  If you've got a ALDL
link scan tool, adjust for around 20 counts at idle (there should be a spec
for your car/ECM).  Also, if the engine's decel characteristics are
significantly different than stock (smaller torque converter, stroker, etc.)
it may stumble on deceleration.  Just some things to consider...

Kendall Frederick

-----Original Message-----
From: owner-gmecm at esl.eng.ohio-state.edu
>>
>On Tue, 10 Aug 1999 10:33:06 -0500 (CDT), Roger Heflin wrote:
>
>>
>> I have noticed  that whatever is going on with my car dieing, that it
>> does seem to be alot more troublesome when it is hot outside (100
>> degrees) over when it is cooler (say 80).
>>
>> I should have new IAC tonight, and it is pretty trivial to install it,
>> so I should know if that fixes it tonight.
>>
>> Now on the IAC 160 is open and 0 is closed, where is it on startup and
>> which way does it usually fail (open or closed), or can if fail either
>> depending on why it failed?
>>
>> And if it  is slipping, then that would imply that if the computer
>> kept signaling it to change (even though it thinks it is a 0 or at
>> 160) that it would offset the slipping, and possibly make things still
>> idle even with a bad IAC, at least until it gets so bad it does not
>> move at all?
>>
>> 		Thanks
>> 		Roger
>>
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