I want to put a water pressure gauge on my 1996 Mercury 150 EFI. 2 questions, first, will the motor accept one? I have wires under the console of my 1996 181 that are labeled "water pressure" but they are just loose. and second, if I can, then what range should I buy? 0-15 psi or 0 to 30 psi?
Thanks, Robert