DDL connector

I have recently upgraded my '94 J30's ECU to a 300zx ECU and my 0-60 is faster, but my quartermile is almost the same. Does anyone know if the J30 has a DDL connector or if there is a cable out there that lets you directly connect to the ECU?

there is a cable plug under the centre consul or in the fuse box

yah, after talking to drape123, I finally found it. if yo want to make some changes to your ECU on your J30, Infiniti, or Nissan, just ask drape123. he has the cable and software to allow you to change settings by using your laptop. ill let you know what i can do to my J30 with the 300zx ECU upgrade I put in. drape123 also has the chip to allow the 300zx ecu to work with your J30. if your into making your J faster just send drape123 a message.