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Ok guys.

This is for a RB30 with R33 25 head into a R32 Skyline using RB25DE ECU

I have both the R32 RB20 and R33 RB25 ECU pinouts sheets.

1. Injector change from ECU pins 112 and 114 sorted (easy swap)

2. VCT ground at pin 113 sorted (easy fit) and 12v power to VCT solenoid hooked in with the ACC valve power in

3. TPS pins 30, 38 and 48 all good for the TPS "position"

4 HOWEVER TPS pinouts 54 and 57 on RB20 are for TPS ON or OFF but there is no corresponding R33 pinout. R33 pin 57 is used for Exhaust Temp and 54 not at all. The R33's uses this part of the TPS but how does the ECU know about it. The RB25DET wiring diagram shows the TPS ON/OFF going to some other plugs but not how it gets to the ECU

5 What is pin 17 Injection Pulse (Ti Monitor) signal. RB20DET doesn't use this pin

Cheers

Nigel

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