Alright, so ive about got what i need around for my MPFI swap.

My question i want to be SURE of, is that since im using obd1 injectors, what do i do with the wires that would normally go to the resistor box?

From what ive read, you just solder them together. But then what? Run them to the yel/black wire at the drivers side engine harness? Which is pin a15 at the ecu, right? So, could i just depin a15, and solder all the wires together, to one wire, and run that wire to a15?

This is the only part thats confusing me.

 

When i added newer injectors to my rex i just de pinned the plug on the harness and plugged the pins into an integra dead plug, which connects all the wires together, like if you solder them. The yel/blk wire is plugged into the dead plug too, so it is connected to the rest & wired to the ECU. The only part i am fuzzy on is this; do you already have the yel/blk wire running to your ECU? On my Si it goes there from the factory, but maybe it's different on a DPFI

 

you need all the grounds from the injectors to connect to pin A15. You can do this however you want. Your method will work.