4KQ problems continued

[KMracer007 at aol.com]

This is starting to agravate me. I just replaced the coolant temp sensor (the one under the waterneck on drivers side) in hopes that it would cure my problems. It didnt , only made them worse. The car wont start now with the new sensor installed. I tryed unpluging the new sensor and the car starts alright and runs really really rich. (black smoke out the back at about 3k rpm) I have a feeling that the mixture was fooled with before I got the car to "make-up" for the failing sensor. The oxygen sensor was suposedly replaced right before I got the car , but I am starting to question that. Any help , advise or general knowlage from the Qlist would be very helpful. Thanks again !

~Kenny
86 4KQ