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Lou6t4gto
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APR 25, 12:34 AM
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1986 coupe, 1999 3800SC Swap.. is there any way, another port ? to add a secondary TEMP Gauge ? don't Trust that Dash Gauge. the "fan" comes on up front but the gauge only reads 170, the "point and shoot thermal gauge" says 220 when pointed at the thermostat housing ! Does the Green wire from the 3800 sender go directly to the dash gauge ? (can an aftermarket elec gauge use that wire for signal ??) ALSO, is the sender in the 3800sc from a '99 Grand prix for a "Gauge" or a "idiot light" ??
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Lou6t4gto
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APR 25, 12:47 AM
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3800 sensor has 3 wires- yellow to "clear 26", black to" blue 12", and ______________________ to where?
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jb1
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APR 25, 04:04 AM
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Green goes to c500 pin c2 which goes directly to guage
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olejoedad
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APR 25, 07:11 AM
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Aftermarket senders and gages do not use the same resistance range as GM senders and gages.
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Lou6t4gto
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APR 25, 08:55 AM
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ok, that settles that. Thanks
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olejoedad
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APR 25, 09:17 AM
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It is possible to recalibrate the temperature gage.
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Lou6t4gto
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APR 25, 09:34 AM
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It is possible to recalibrate the temperature gauge. HOW ? this thing starts at 200 degrees cold
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darbysan
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APR 25, 10:59 AM
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Is it possible that the "temp Gauge wiring fix" is confusing the issue. IIRC, that fix crosses the Temp Light wire and the Temp gauge wire. Just something to look into. You can test by using a variable resistor as the source of resistance at the engine end, and seeing what the gauge is doing.
It's also possible that the needle has been knocked off calibration due to the old problem where the Temp Gauge was being slammed full on every time the car started ( reason for the temp gauge wire fix). You can pull the needle off and re-set it- I used a variable resistor to do mine ( The Rheostat for dimming the dash lights will work for this too!).
Link to resistance chart
http://www.fiero.nl/forum/A...090219-2-082030.html------------------
'87 GT , '00 3800 Series II SC, 4t65e, Vue Power Steering. (SOLD)
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MulletproofMonk
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APR 25, 04:01 PM
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Dennis LaGrua
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APR 25, 06:28 PM
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A few Fiero owners just swapped to a new digital gauge console . IIRC it was used on either the Pontiac Sunbird, Chevy Beretta or Cavalier. It was a nice additinbut some adaptation and modification of the gauge panel was necessary. ------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
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