When its running good (which USED to be most the time), the car runs perfectly, and starts in less than 1 second. However now, at random, the engine completely STALLS while driving, and is then sometimes hard to start. I managed to check the sensor readings once while it was acting up, and found that the coolant sensor was reading LOW (52) while the manifold air temp sensor (MAT) was reading normal (about 100). The newish O2 sensor was also reading low (17-18, which I believe is lean?), but now seems to be fine again. Normally, I would think it was a bad coolant sensor or something, since it's usually pretty close to the MAT's value.
However, the coolant sensor has since started reading normally as well (until it dies out, when it's probably reading 52 again).
Do these types of sensors fail completely, or is it possible to fail sometimes (stay around 52), and then other times act normal (read 90-100 again)?
Does this have any relation to the O2 sensor? Could it be bad wiring?
Help!!
However, the coolant sensor has since started reading normally as well (until it dies out, when it's probably reading 52 again).
Do these types of sensors fail completely, or is it possible to fail sometimes (stay around 52), and then other times act normal (read 90-100 again)?
Does this have any relation to the O2 sensor? Could it be bad wiring?
Help!!