Bought a 92 88 royal LS sat in a trailer for about a year, ignition mod connecter was bad, bought a new connector and also new coil module got the car running but cooling fans, speedometer and AC will not kick on, when driving the speedometer wants to try. It also pulsates and wants to die, checked my wiring, fuses good, replaced relays. Fans will come on bypassing the relay, I'm thinking short in the wiring somewhere. I'm lost though