Re: [tuner23] Re: AIr Temp Sensor?

["ICDP4TURBO" <mpe-7@worldnet.att.net>]

Yes the ACT sensor is the last chance for the EEC to make air/fuel mixture
adjustments as the aircharge temperature changes. I still don't buy the idea
that it pulls timing retard but what the heck it works for me.

I would think that the VAT takes care of any inputs that would affect
adjustment from idle to WOT as long as the ACT sensor does not turn in a
different reading from the VAT.

Like Randy said ECT,VAT, ACT inputs are used by the EEC to do changes, yet
the ECT input is the main timing modifier from my point of view.

Jaime
77 Pinto SW Cruiser DPDIS, EFI turbo, ABS.
88 T-Bird TC DPDIS.



 I think everyone is missing the point here. If the ACT pulls timing at
high
 charge temps, that is to prevent detonation, at the time when it most
likely
 to happen. This undoubtedly allows more timing everywhere else, only
dialing
 in a minimal retard when most needed. This leaves more lead during light
 throttle cruise, cool ambient air conditions, or when the motor is cold,
to
 name a few.


[Non-text portions of this message have been removed]


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