gotenham

mate, im looking for exactly the same info for my neo into 260z swap, have also removed the TCS/ABS during the conversion and the CEL (code 44 and 46) which the ECU throws from not having the circuits connected keeps putting the engine into limp mode which is a HUGE pita.. Unfortunately if we had the control boxes etc wired up this would be an easy fix as you would just just need wire the "TCS on/off" switch to ground which would put it permanently off and not throw a CEL..but from the pic it looks like we are both in the same boat... To share the path ill be going down, iv gone through the circuits for the r34 TCS/ABS system and also the expected voltages seen from the ECU, going off your pic, these are all ECU expected values while the car is running: 79 - Multiples Comms is a varying signal but averages 2v. 53 - Motor Throttle Switch signal remains at 4.7v (while the TCS system is off) 51 - Throttle Motor Sensor 3.4v (while the TCS system is off) 37 - Throttle opening sensor (i think this might be an output from the ECU to the TCU computer), this is the same values as your pedal TPS on pin 23. I guess the best bet will be finding resistors which drop a 12v supply to roughly these values to trick the ECU.. From what i understand the only two which will cause issues (ie what the ECU checks for) are the multiplex signal and the Throttle Motor Sensor (ie pin 79 and 51) i would assume the others dont make any difference and can be cut back.. let me know if you find anything out and we can work this out together haha

Wouldnt you know it, after searching for days as soon as i post the topic i find the answer, for those who find this post searching for answers, here are the codes which i couldnt find anywhere for the R34, enjoy (couldnt figure how to BBC embed the image on this forum): http://imgur.com/G3jLnQT

Have a '00 RB25DET NEO (S2) in the 260z, have just done a manual conversion and noticed she is running a little bit rough (small squeeling kind of noise coming from engine). Anyway the car is now throwing a CEL, I went to check the engine codes by shorting out ECU pin 22 to pin 24 (CHK to IGN) to get my check engine codes: I keep getting code 46 and code 44... I have checked everywhere and cant for the life of me find what these codes are, i keep finding the codes in the link below repeated all over the internet but there is no mention of code 44 or 46...http://www.sau.com.au/forums/topic/266512-reading-nissan-fault-codes-ecu-fault-codes-how-read-them/ BTW Im reading the long pulses as the first number and the short/fast pulses as the second number. Here is a video of the light for your own interpretation: https://youtu.be/J0qQ7u4mImw Any help would be much appreciated.