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Thank you for this information, I greatly appreciate it. When you drop the voltage on pin 48 to 2.6v are you connecting it to pin 57 Or does the voltage just need to be dropped inline to send the signal to the ECU ? Thank you again for your help.

Hello everyone, I want to thank you for any info in advance. I have searched the forum but need help finding the answer. I Have an R33 Gtst and swapped it to an RB25det NEO with NEO ECU. For the swap, I used a wringing specialties harness, and it has come together prefect only issue is the AC does not work now. I did keep all of the R33 AC components. I noticed that the R34 has a two-wire AC pressure switch, and the R33 has a four-AC wire pressure switch. Has anyone else done this or know the fix?