Hello, my 89 Coupe deVille (4.5L) is going through some heat problems that I am still trying to narrow down. Meanwhile I want to install a mechanical water temp. gauage. I noticed that the ECT sensor on the water neck is for the computer, and I located another sensor on the pass. side of the intake manifold w/ a wire going to the harness. This is for the dummy light (Fan temp./coolant light)? Can I take the sensor out, and hookup a split or something so as to keep my dummy light as stock, but have a real gauage also? Or any other better ways to install a sensor, (on the cylinder head like reg. v-8 chevy's.)
Thanks alot. Doug.