165 $6E cold idle

[Bruce Plecan]

The MAT is used in a gas calculation, I'd strong recommend, looking at the
CTS, AFR stuff.    Maybe twist the the scalar table some if the BLs are not
right in C/L.
Bruce




> Found my idle problem this weekend... cold weather.  The weather here
(East
> Coast FL) went cold for the first time since I started playing around with
> closed loop disabled.  Both my lean and rich chips ran like crap.  This
> weekend, both chips ran great.  The lean one's idle was a little rough,
but
> not that bad with the low end of the MAF Scalar table turned up a bit.
> Looks like I've got some cold weather idle tuning to do.  Any thoughts?
>
> Here's my thinking.  With the MAT sensor located under the plenum, it's
> coupling all the heat from the motor.  The MAT readings from a cold to a
> warm day only differ by about 6-10 degF, even though outside air temp is
30+
> degrees below normal.  Would relocating the sensor away from the motor
help?
> (Thought about mounting it to the air filter can, right fender well in TPI
> Firebird.)  Or, can the air really warm-up that quick when it enters the
> plenum?  In that case, is the problem the MAF sensor is giving an
erroneous
> reading from the cold air?
>
> Any suggestions are definitely welcomed!!!
> Steve
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