I would double check that the sensors are wired to the correct spot on the ecu.

get a ecu pin-out and find out which wire should be for those two sensors and follow the wires and make SURE they are attached correctly.

 

i would assume that they are in the right spots becasue i never messed with them...the tps wiring is good but the sensor might not be...the CPS is the one im concerned about. in the dpfi to mpfi swap you have to run wires from C1 and C2 to the blue green and blue yellow wires on the new si dizzy. i did that and its still through the code 4. not sure whats the matter. how do i check to see if its a good dizzy? any way

 

do you think it matters if i used the dx dizzy cap with the si distributor