Well, I think I will just replace the ECT, since it is pretty cheap. But let me give all the symptoms so if this doesn't work, or someone can respond with an idea before I do the ECT replacement, I can do something else.
Once it got real cold here, in the mornings my car would be searching RPM, at idle in park. And sometimes die. But once in a gear other than Park or Neutral, the car would idle perfect. I had a CEL on, and the codes were bank 1 lean, bank 2 lean, and Torque Converter Clutch Control Error. The Torque Converter Clutch Control Error was something that had been bothering me every so often,(I had a post about this problem.)
Transmission trouble, after driving for 45 minutes
Today the car acted different though. The car did the same thing as it did before in Park, but now it is not only in the morning like it was. And the car will do it also when in Drive. It will not die in drive but the RPM will get to about 250 and feel like it will die then jump up a little again. Also it will idle very rough, to the point the car shakes. GAS MILEAGE IS HORRIBLE also.
If anyone has any ideas, let me know. I need to fix this so I don't get stranded any where this winter.
Thanks a lot.
