Thursday, August 13th, 2009 AT 7:25 PM
I have been working on a 1991buick century limited with a 3300 engine. I was driving up a hill and allof a sudden the car slows down and when I reached the top it died. After I got pulled off the rode I started it again and it died So far we have replaced the ecm and the ignition control module. I did a diagnostics test on it and the codes I was given one of them were the tps throttle position sensor and another was the O2 sensor can anyone help please.

