alright so i believed that when i was doing a motor swap from a 2000 blazer into a 1995 blazer that all i would have to switch electrically was the computer. but now it seems i have many other sensors and differences between the two wiring harnesses. ive got a few ideas on how to go about this but other ideas will certainly help. thanks

 

Not sure who told you that you would just have to switch the PCM. There are MANY differences between the CPI and SCFI engines that would require the entire SCFI engine wiring harness assembly. The new PCM might also be looking for other things inside the truck (BCM, ABS, SRS, etc) that will not be present in your '95 chassis either.