1991 lincoln towncar, remote start

I'm having problems with my friends remote start on a 1991 lincoln towncar. When the car it's remote started it shuts off right away and then it remote starts again by itself and it keeps doing the same thing until it is powered down by either the remote or by unpuging the fuses. We are using an add on remote starter system. This system comes with a Smart sense so that means we didn't use the tach wire. Can anyone please help. Thank you and I appreciate it.

if all ign and start wires are correct than the only thing left is something to tell the R. start unit that the car is running that would be tach, so if the unit has a tach wire hook it up as per the directions on the remote start. i only use smart sence or voltage sence when the car has no tach wire that can be accessed because smart /voltage sence is a hit or miss if it going to work. usulay what the unit is looking for is a change in voltage when the alternator kickes in. so if you do have to use smart  sence and is not working move the 12V batt. line from the remote start to the cars batt.  

12volts  brown or lt. green   +  ign. harness Starter  dk.blue/orange   +  ign. harness Second Starter       Ignition  BROWN / pink   +  ign. harness Second Ignition  pink/black   +  ign. harness Third Ignition       Accessory  BLACK/ lt. green   +  ign. harness Second Accessory       Keysense       Power Lock  pink / YELLOW  +,-  drivers kick panel Notes: Non-keyless cars are normally (+) pulse with relays in the passenger kick panel, but at least one car was found to be 5 wire. Check the back of the driver side lock switch if in doubt. Keyless cars are (-) pulse on the same wires. Power Unlock  pink/green  +,-  drivers kick panel Notes: Non-keyless cars are normally (+) pulse with relays in the passenger kick panel, but at least one car was found to be 5 wire. Check the back of the drivers side lock switch if in doubt. Keyless cars are (-) pulse on the same wires. Lock Motor       Unlock Motor       Parking Lights+  brown    drivers kick panel Notes: Factory alarm module located in lower passenger side kick panel with keyless entry module. BLACK/ orange (doors), dk. blue (horn - ), and WHITE/ purple (light flash +) are all at alarm mod. Parking Lights-       Hazards       Turn Signal(L)       Turn Signal(R)       Reverse Light       Door Trigger  blk/blue   +  pass. kick panel Notes: Factory alarm module located in lower passenger side kick panel with keyless entry module. BLACK/ orange (doors), dk. blue (horn - ), and WHITE/ purple (light flash +) are all at alarm mod. Dome Supervision       Trunk/Hatch Pin  tan/green   -  at factory alarm Notes: Factory alarm module located in lower passenger side kick panel with keyless entry module. BLACK/ orange (doors), dk. blue (horn - ), and WHITE/ purple (light flash +) are all at alarm mod. Hood Pin  common with trunk     Trunk/Hatch Release  purple / YELLOW   +  switch or keyless mod. Power Sliding Door       Factory Alarm Arm  arms on lock     Factory Alarm Disarm  dk. GREEN/ purple   -  kick or alarm module Disarm No Unlock       Tachometer  gray/orange   AC  EDIS dr. shock tower Notes: EDIS module locate at driver side shock tower. Gray/orange wire at one end of 12 pin plug. Wait to start       Brake Wire  lt. green   +  at brake pedal switch Parking Brake       Horn Trigger  dk. blue   -  at steering column Notes: Factory alarm module located in lower passenger side kick panel with keyless entry module. BLACK/ orange (doors), dk. blue (horn - ), and WHITE/ purple (light flash +) are all at alarm mod. Memory Seat 1       Memory Seat 2       Memory Seat 3       Interface Module: Category: Immobilizer Bypass Required: No Type: N/A Part #: N/A

Thank you and It does make sense as to what you're saying. I am gonna use the tach wire then. Thanks alot.