hi I have fitted a aftermarket temp gauge in my glove box along with oil temp and boost. both other gauges are spot on. i connected the water temp gauge to the temp sender off the head but I'm getting no reading although my original gauge does? I disconnected the oil temp sender and temp wired it to the water temp and the gauge works fine. but just not off the water temp sender. its new sender from msd so is the correct one. any help woyld be great 😊