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Re: [tuner23] Re: Air Temp Sensor?
With no sensor attached, the EEC sees 0V, and there should be a parameter
that has ACT minimum. Is the minimum just for setting codes, or does the
EEC use a default value when that minimum is reached?
Plus Dan wrote that the ACT does not retard the timing, so if that's the
case, there should be no affect whatsoever with it plugged in or not.
John Baas
http://a4tqms.tripod.com
----- Original Message -----
From: "Jeffrey Engel" <jengeltx@yahoo.com>
--- John Baas <xr4tic@ameritech.net> wrote:
> I'm curious as to why some people were reporting
> better performance with the ACT unplugged.
> Faulty sensors (cheap, non-Ford sensor) maybe?
>
> John Baas
> http://a4tqms.tripod.com
The sensors resistance decreases with temperature, so
an unplugged sensor indicates -20F or therabouts.
With that input, the EEC won't pull out ignition
timing whatever the charge temperature. Having the
extra advance makes more power. Probably not a good
thing for long races, but the folks using this trick
all seem to be drag racers. Sounds like it works well
for the 10 - 12 seconds they're at WOT.
$0.02,
Jeff Engel
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