Hi
I just bought a haynes manual and found out its crap!!! I have a few dtc's on my 88 but would like to start with the 21 coolant temp sensor out of range. would anyone have any parameters on this sensor hot/cold volts and ohms.
any info will be greatly appriciated
thanks
According to Probst - at 50F it ought to put out about 3.52V; 104F - 2.16V; 194F - .61V. Fairly linear scale in between for interpolation. You might try loosening it just a bit and retightening; and also slide the connector on and off to be sure there's good continuity at the connection. But more than likely, you'll have to replace it.
do you mean what each code is? it is in Haynes as i recall (Chapter 6).
for the codes and stuff related to it, go to this thread and then to post 4 (by Jrichker). he lists 3 sites for pulling codes. http://forums.stangnet.com/showthread.php?t=433094&highlight=codes
good luck.
oh i think i get you. to do a search on a small word or phrase, try outlining it with * *
Pin 7 ECT signal in. at 176 degrees F it should be .80 volts
68 degrees F = 3.02 v
86 degrees F = 2.62 v
104 degrees F = 2.16 v
122 degrees F = 1.72 v
140 degrees F = 1.35 v
158 degrees F = 1.04 v
176 degrees F = .80 v
194 degrees F = .61
Ohms measures at the computer with the computer disconnected, or at the sensor with the sensor disconnected.
50 degrees F = 58.75 K ohms
68 degrees F = 37.30 K ohms
86 degrees F = 27.27 K ohms
104 degrees F = 16.15 K ohms
122 degrees F = 10.97 K ohms
140 degrees F = 7.60 K ohms
158 degrees F = 5.37 K ohms
176 degrees F = 3.84 K ohms
194 degrees F = 2.80 K ohms
The ACT & ECT have the same thermistor, so the table values are the same