I noticed on my gauges that the two most important gauges arent working, the temp and oil presure gauge. The RPM, volt and fuel work but not those two. How can i test them to see if its just a wiring issue or if something isnt hooked up? Discount autoparts has autometer gauges on sale for 9.95 in black and white face but i dont want to have to run the hoses and wiring if i dont have to. Plus im not sure where to tap into for getting the accurate reading. So ill start with suggestions on testing what i have then ill go with plan B. Thanks