07-29-2019, 12:49 AM
(07-27-2019, 09:58 PM)fixkick Wrote: the sensor is easy to test in a pan of water, even just 2 tests, room temp 20C and then 80c, using any DMM + ohms mode.
safe and simple and not risk to car.
the data I took on mine is here , see my charge see right columns
ignore the 2 errors I made here, (blush) 5030 and 5200 (midnight typos,,,,
https://fixkick.com/ECU/temp-sensors.html
if you look on my chart those voltages may work. 180F , if you back probe the sensor you see 0.65 volts CD , way less is and overheated engine or bad ECT.(or wrong ECT or china $5 knockoff sensors)
I pulled the ECT to test in a pan of water. To 'plug the hole' I put the ECT from my other motor and tightened it up and let the motor run to temp.
I got nearly the SAME results.
To test the ECT in a pan I did the following.
Aluminum pot
Candy/Fryer type Thermometer that can range from 100 - 450
Meter set on Ohms at 2K , My meter does't have a 1K setting.
Alligator clips to leads attached to the ECT. I cut a piece of a drinking straw to use as a shield of the middle lead so clips couldn't touch.
Suspended the ECT with a wooden spoon and a clamp to keep it off the bottom of the pan and filled water up to the top of the threads and not the plastic.
Here are my readings. I took photos of each temp reading.
120 degrees - .981
140 degrees - .631
160 degrees - .430
180 degrees - .302
200 degrees - .217
212 - full boil - .188
First of all I
Picture you posted on IMGUR states at
140 degrees it should be 0.584
176 degrees it should be 0.303 -0.326
Would these readings be considered 'in scope' of what I should expect to see? I think so.
And the fact that I was getting SIMILAR readings of the ECT I have in now.
When I got the car I had a chance to pick up a known good PCM to have a spare for a decent price so I picked it up.
I plugged it in this weekend and rand the engine up and got the same results.
To me it validates the ECT readings I am getting.
I've tried as many ways I can think of to validate the results, multiple scanners, multiple ECTs and multiple PCMs. All with the same results.
I have also located a few others who have done the same swap with a J23 into their Sport. They will hook up a Scanner to their vehicles soon
and will share their results with me. I'm trying to get the most information I can for comparison.