Wow, this open question is pretty old..... Imma gonna take a stab at it anyway.... Try the "check" relay under the hood. It should be located with several other relays under a plastic cover
Hey Ron,here's a link to your throttle body,I have a 85 Nissan 4x4 2.4,but it's carburated.I f you wan't to get a 86 experts advice,join this site,It's free,I am a member,has forums and you can buy and sell parts,free advice,interact with other Nissan truck owners,put your pictures up and see other trucks and get ideas,here's my Nissan.
It is on the fuel pump under the truck on the passenger side. Right in front of the back tire. You have to remove the metal protective box to see it. Have this truck and most folks answering here have no clue this is a one year issue with this truck.
This will take too long here. Get some trained help or good home mech. You need to do this safely because of the weight of the trans. You will need an alignment tool to put the clutch back.