slobalt716

iTrader: (1)

i have a question guys. i almost got all my stuff for h2b. h23a motor b16 trans with itr lsd. my question is does the h23a injectors need a resistor box? and as far as wiring, what all needs to be done? ill be buying a obd2a vtec 5 speed harness. i know the alt wires need to be lengthened, and the injector clips changed. any wiring need to be changed with the dizzy? thanks for any help

HiProfile

They should be saturated 290cc, no resistor box needed. If you want different injectors in an H23A, you have 3options: S2k injectors (direct swap), replacing the fuel rail studs with H22/F22 manifold studs (and a shim), or swapping to an H22 lower manifold.

The dizzy will need a different plug, and the RPM lead fed from the bare terminal on the ignitor. Or you can use an OBD1 h22 dizzy and swap plugs. You'll need to lengthen the IAT wire, add a wire for IAB's (or lengthen the purge solenoid wire and have your EMS use that), add a vtec pressure switch if using a stock h22 ECU, and move the wires for the d16y8's oil pump sensors to the dizzy. DO NOT CUT those wires, they have special shielding and will cause all sorts of problems if you cut & solder them. You may also have to lengthen the oil light wire.

There will be a few other minor things, but that's about it. I do recommend using a 90-93 F22 fuel rail that has the inlet banjo fitting on the passenger side.


BTW I have a write-up on how to change the H23A dizzy to make it like an internal coil obd1 dizzy here, halfway down the page:

http://www.d-series.org/forums/showc...-thread-2.html

slobalt716

iTrader: (1)

Awesome thanks a lot. So as far as the dizzy, I can use a jdm h22a obd1 dizzy and just switch the plug and it will be all set? And do you know anyone who makes a swap harness for this?

slobalt716

iTrader: (1)

bump for the harness question

slobalt716

iTrader: (1)

Bump

kyliejohn1129

You can keep ur h23a dizzy just switch the plug and add the pm wire to the empty spade on the igniter

slobalt716

iTrader: (1)

Bump

kyliejohn1129

Why are you bumping when all your questions were answered

slobalt716

iTrader: (1)

i asked if anyone makes a plug and play harness

kyliejohn1129

My bad and no need for a harness just sit down and follow the wires and switch it from one plug to the other . It's very easy and just add the rpm wire I took pics of when I did it if you want them

HiProfile

There's no plug-n-play harness because that distributor is missing the wire completely. If you don't add the wire, you get absolutely no tach feed - that's the only spot the obd1 ecu gets the engine speed from.

It's simple to depin, just google "depin honda connector" and snap the pins into the bigger obd1 plug. You will have to solder on the 2-pin connector's wires, one is the tach wire so really it could just be a single wire to solder.

My DIY's last pic shows the 2 obd1 plugs, only one was soldered while the rest were just de/re-pinned.

h22steaksauce

I have my harness from my h22a swapped Ek. 96-98 with the resistor box wired all extensions or modifications are soldered and shrink wrapped...pm me if interested. Located in ct can provide pics and ship.