[5150coupe]

thanks for the reply, I think i found the issue though. when i installed my trick flow track heat manifold recently i removed the piping going to the heater and the ect along with it. i thought the ect was the other sensor used for the heater guage. i also had a hard time finding any pictures of the ect installed on a 5.0, so it took a while to figure out. the manifold came to me capped, and i don't need the heater, so i left this piece out. the only option that i can see is to add the piping back in or somehow connect the sensor directly to the block. the only thing i can't figure out is how the car ran for a few weeks without issue with the ect removed? somme modifications include a 76mm C&L, bbk 70mm tb, trick flow track heat upper and lower.