I have a TBI unit from a 1988 K3500 with it's stock TPS sensor. It is non adjustable with the 3 pin weatherpack style connector that sticks out at a 90 degree angle. I am using a 16197427 running $31 with BMHM (1995 7.4 auto) for a starting point. Tunerpro shows the throttle position with the throttle closed at 18%, and tops out at 88%. Is this a problem? Is my TPS incompatible with the newer computer and will this cause me any problems, or does the '7427 read the sensor default position and compensate? If I need a different sensor which one do I use?