Jclarkb43

Hello all, Ive been doing some extensive trouble shooting regarding my TPS signal voltage. The car is a 1990 r32 GTST with a RB25DET S 2.5 ( last production before the neo, has neo ecu, neo cas, neo maf). But the TPS is the s2. Back probing the signal wire i get ~4.5 volts but also unplugged i get about the same.. ive gone as far as removing the TPS signal wire from the ECU plug and testing at the ECU pin 23 which is getting the same voltage which means its getting it from the ecu... ive tired a stock ECU and a WC34 NIStune ECU and they both do the same thing.. that car drives and runs a little on the rich side. The only think that changes the voltage is if i pull the ECCS relay it goes down to ~1v or if i unplug the grounds it goes up to ~8 volts any help would be greatly appreciated.

Late rb25det s2 (s3?) swap no start :( So i have an 1990 r32 gtst at the end of a very late rb25det s2 swap, the 25 came with a neo style CAS. I kept my rb20 gear box, and ecu (nistune type 2 board with rb25)for some reason my check engine light does not come on at all, and i can not put the ecu in dignostic mode. I am using my 20 loom, using my 20 coils, ignitor and harness, on the cas i have swap the wiring to match the neo style pin out and i have strong spark on 1, 2, and 3 but starts to die after that almost to almost nothing. Im getting fuel and pump primes when get is turn to "ON" injector pulse i can hear and feel it when i turn the cas by hand. It cranks but does not run. Still using the rb25 s2 TPS. I am out of ideas at this point. Any help would be greatly appreciated.