Quote Originally Posted by Bad 454ss View Post
alot was tuned out of the pcm but im getting codes for evap anti theft and coolant temp the temp sensor has no wireing in the harness so it wasn't tuned properly
you need the temp sensor to be connected and working properly. And im not talking about the sensor your going to use for the guage, im talking about the temp sensor in the head that tells the computer what the temperature is.