Taipan 0 Posted February 5, 2018 I purchased a NA S15 engine without a ECU or Immobiliser attached to the harness to install into my S13 am I going need a wiring loom without the immobiliser plug to use a S15 Nistune ECU or can I use the AUD loom with the immobiliser plug without any dramas? Thanks in advance. Any links to wiring diagrams and guides would also be appreciated. Share this post Link to post Share on other sites
6330 14 Posted February 13, 2018 Not sure if this helps but I've got a S15 (200sx) and when I got my Nistune fitted I was informed that the factory NATS security has to be deleted from the ecu. Share this post Link to post Share on other sites