[Shotimes] temp sensors... was: ECT description & location

[Paul Nimz]

You wouldn't happen to know the data acquisition rate do you?

Paul Nimz
'97 TR
'93 EG mtx



----- Original Message ----- 
From: "Mark Nunnally" <manunnal@netheaven.com>
To: "shotimes" <shotimes@autox.team.net>
Sent: Wednesday, July 02, 2003 2:59 PM
Subject: Re: [Shotimes] temp sensors... was: ECT description & location


> Only 2 are feed to the EEC, and I can't find anything in SCtuner graphs
and
> such that the ACT has anything to do with anything.  The voltage curve for
> it (same as the ECT) is all wrong anyway.
>
> The ECT does have a lot to do with the EEC's engine program though...
>
> Yes the EEC-IV datalogger runs on a laptop (or a desktop if you have a
real
> long extension cord :) and monitors/records/plays back EEC data in
> real-time.  Has inputs for additional sensors as well, wide band O2, EGT,
> MAP, etc.  A very handy dandy tool for tuning.  You can make a pull,
record,
> and look at it back on a graph in relation to everything else.  Ie pick a
> point on a chart, say 6800 rpm at WOT, and see exactly what the MAF
voltage
> is, injector duty cyle, pulse-width, advance, etc A/F readings (if you
have
> a wideband O2 hooked up) etc.
>
> There should be a few of them floating around the convention, (I know that
> at least myself and Josh will have our's there).  SCtuner, EEC-IV
> datalogger, and Wide-band 02's (on dash display as well as hooked up to
the
> datalogger).
>
> mark
>
> ----- Original Message -----
> From: "van Oss" <vanOss@centurytel.net>
> To: "Justin Schick" <jschick@aafp.org>; <shotimes@autox.team.net>;
> <TechSHO@topica.com>
> Sent: Wednesday, July 02, 2003 3:38 PM
> Subject: [Shotimes] temp sensors... was: ECT description & location
>
>
> > Your average SHO has at least FIVE temp sensors.  Two are AIR sensors
for
> > ETAC:
> >
> > --- Outside air temp sensor is on the radiator wall, near hood latch.
> >
> > --- Interior air temp sensor is behind the "SHO" plate on the passenger
> side
> > of the dash
> >
> > And three of them are COOLANT temp sensors:
> >
> > --- Cold Engine Lock Out (CELO) switch is in the engine bay, mounted on
> the
> > steel portion of one of the heater hoses.  Keeps the ETAC from blowing
> cold
> > air on your feet until the engine's warmed up a bit.  Two-wire
connector.
> >
> > --- Engine Coolant Temp (ECT) sensor is mounted on the rear part of the
> > rat's nest of coolant piping just above the tranny.  This one is a
> > thermistor that tells the engine computer about engine temp.  Plays a
role
> > in fuel mixture, don't ask me how I know.  Two-wire connector.
> >
> > --- Sending unit for the dash Temp gauge:  Again, a thermistor
controlling
> > the ground side of the dash gauge.  Mounted very near the thermostat.
> > One-wire connection.
> >
> > Joseph van Oss
> >
> >
> >
> >
> > ----- Original Message -----
> > Can anyone tell me which temp sender is which. I can see a one wire one
> > close to the thermostat housing and more to the front of the engine bay,
> > and a two wire one further from the housing and rearward. My gauge seems
> > to operate fine, but am questioning the sender for the computer. I
> > recently replaced my O2s. No more CE light, but I still only get 22 mpg
> > maximum.
> > Thanks!
> > Justin
> > _______________________________________________
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> > Shotimes@autox.team.net
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