mhuppertz Posted June 19, 2018 Share Posted June 19, 2018 Well, the new temp sensor lasted one day. Now my poor car has list its mind, flashing that it is too hot and cutting the A/C, then electrical problems, then sticking at a reading of 118, then low oil (it's not low, and I replaced the sensor last fall), and one and on. Codes: E014 E022 B122 B123 B482 B446 B450 I replaced the TPS and had it set to .4v, replaced the coil pack and controller... battery cables are nice and tight (and clean). This is hard because it's my daily driver. Thoughts? Thanks, Mark Link to comment Share on other sites More sharing options...
Cargirl Posted June 19, 2018 Share Posted June 19, 2018 I had a Corvette that started sending me lots of codes and ran rough. Turned out the ECM (Electronic Control Module) had a crack in the board and it was sending random codes. I replaced it and that solved the problem, no more code . Hope this helps. Link to comment Share on other sites More sharing options...
mhuppertz Posted June 21, 2018 Author Share Posted June 21, 2018 Interesting news, I plugged in the old temp sensor and the Reatta gained its former composure, as it were. So the new sensor lasted one day then sent the ECU into munchkin land. Go figure. Going to get one from Napa tomorrow. Link to comment Share on other sites More sharing options...
Ronnie Posted June 21, 2018 Share Posted June 21, 2018 Are you certain the correct temperature sensor is installed for your engine? There is a temperature switch that looks similar but will not work correctly. Link to comment Share on other sites More sharing options...
2seater Posted June 21, 2018 Share Posted June 21, 2018 I agree with Ronnie. If the behavior changed with the sensor change then it needs further scrutiny. Some GM models with the same engine may use two sensors of some type for differing purposes but the Reatta only uses one two wire sensor and the ECM/BCM does the rest. Not exactly the same, but I had a Saturn many years ago which used two sensors. One for the gauge and one for the ECM. A common problem was for the ECM sensor to fail (poor design) and the car would become almost undriveable while the gauge read normally. While not the same, it does indicate seemingly unrelated things can act up with a bad signal. Link to comment Share on other sites More sharing options...
padgett Posted June 22, 2018 Share Posted June 22, 2018 Agree, a closed switch instead of a sensor could drag down the sensor bus voltage and affect many things. Link to comment Share on other sites More sharing options...
Ronnie Posted June 22, 2018 Share Posted June 22, 2018 This coolant sensor or equivalent is what you need. Link to comment Share on other sites More sharing options...
mhuppertz Posted June 22, 2018 Author Share Posted June 22, 2018 It worked perfectly for one day. so I think I had the right part. Bought the next one from Napa, so we will see, replacing it hopefully today. Link to comment Share on other sites More sharing options...
Ronnie Posted June 22, 2018 Share Posted June 22, 2018 Did you buy another one just like the one that lasted one day? Link to comment Share on other sites More sharing options...
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