:laugh:Newbie here. I try to stay away from computers I’m slow to the forum game. I’ve done a dual coil 3rz swap. That’s still lacking a tach in an 1988 samurai I’m sure this is not the knowledge forum for that but now I’m in the middle of a 2rz turbo swap in an 81 sr5 rwd It’ll need the tach hooked up and figured out. I’ve been using tis. Toyota information system to look up all the correct wiring diagrams. This 2rz was a 02 I believe. But I had to track down harness and ecu. I’m getting a little scared to fire this thing up it seems like everyone mismatching is having issues. I bought a 02 engine. harness to figure out that 02-04 I believe has two ecu plugs on the engine harness not three. I talked to a guy at toy only swaps and had mentioned 01 had less emissions and 2rz had no egr. So I bought a 01 ecu manual 2rz. And I also have 3rz 01 dash harness I’ve been watching the diagrams keeping an eye on colors and what not. So far looks good. I tracked down an 01 quad coil harness. When I got it home I realized it was an auto engine harness. I’ve been taking out the auto wires. If anyone has dealt with mismatched parts let me know if you found problems I can fix before they arise. Who has a working tach in there 1st gen with an rz. Did you use a Dakota digital. Will a resister work ? I don’t want to smoke my tach just booking up wires. I’d love to post pics but I don’t see an option
