How do you convert a motor from OBD II to OBD I?

[v4lu3s]

I don't want to thread jack, but i am in a similar situation. I have a 99 h22a4 and need to know what injectors to use. My car is a 92 accord ex. Since my car is obd1 can i use injectors from a 94 h22? If so, what size are they?

you can use either the late or early model injectors. it does not matter which you use as long as a few things happen:
97+ injectors need NO resistor box and NEED a 97+ fpr, they also have obd2 clips
92-96 injectors NEED a resistor box, and NEED a 92-96 fpr, 96 injectors should be obd2 injector clips, 92-95 use obd1 injector plugs.

[Asimo5767]

Can I still use my stock f22 injectors? Or should I use the 94 h22 injectors; if so what size are they, so I can tune accordingly.

[v4lu3s]

Can I still use my stock f22 injectors? Or should I use the 94 h22 injectors; if so what size are they, so I can tune accordingly.

you must not have read the thread:

290cc injectors must be run with the 97+ fuel pressure regulator, they run at high pressure and flow around 310cc
92-96 injectors, the 340s run at low pressure and flow at 310cc.

and f22 injectors are 240cc. thats a good way to grenade your engine.

[tn_accords]

the 96 is obd2 with an h22a1, so it has the peak hold injectors and needs the resistor box if you use 92-96 injectors. it has the 97+ style oil pump and distributor though.

ok.. you are confusing the hell out of me now.. the question is "do we need the resistor box or not ?"

we are going to be using the harness that was already in the car because he had an H22 already in it. what is need to do to that harness if its a 96 OBDII motor with the resistor box ? i know we can't use the harness that comes with the motor.

another question is can we use the injectors that came with the motor ?? because according to what i understand is that if its the 96 OBDII motor with a resistor box all we need to do is to swap the injector clips and use the resistor box that came with the motor ?? RIGHT ??

that is the only concern of mine ^^^^ ... we have the OBDI dizzy and throttle body to make it OBDI.

[v4lu3s]

ok.. you are confusing the hell out of me now.. the question is "do we need the resistor box or not ?"

we are going to be using the harness that was already in the car because he had an H22 already in it. what is need to do to that harness if its a 96 OBDII motor with the resistor box ? i know we can't use the harness that comes with the motor.

another question is can we use the injectors that came with the motor ?? because according to what i understand is that if its the 96 OBDII motor with a resistor box all we need to do is to swap the injector clips and use the resistor box that came with the motor ?? RIGHT ??

that is the only concern of mine ^^^^ ... we have the OBDI dizzy and throttle body to make it OBDI.

1996 injectors are peak and hold 345cc, they REQUIRE a resistor box. if you want to use those injectors use a resistor box and clips that will fit them.

if you decide to use 97+ injectors you do not needa a resistor box.

[accord2nr81]

2. Get a OBD-II to OBD-I dizzy wiring harness from passwordjdm <--this is what I will be doing.

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OBD1 Distributor to OBD2 Engine Harness
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[accord2nr81]

FUEL
alright i have a qustion to add to this....
say you havnt decided on if your going to use the 97+ injectors or the 96- injectorss. i already have a aem fuel rail and regulator "witch is adjustable on my f22" i know i can't use the f22 injectors but will the aem FPR be ok to run the 97+ injectors with no resisterboxs? or should i use the 96- injectors with the aem FR and FPR with the resister box "and dose the F22 have the resister box in it already or will i need to buy one from a 93-96h22?

Distributor
i have read on a bunch of forms the the Obd2 and Obd1 Dizzys arnt that much different from each other . i know there are conversions and such you can do but heres the deal iam looking at... my car 93 ex cb7 obd1 extrenal coil
my h22 is out of a 98 prelude i pulled it out today and when i got the hood open i noticed that it too had an extrenal coil on it but guessing its still obd2?
i was thinking that the 97+ dizzys where all suppose to be internal coils... so is there anything i can modify on the stock 98 extrenal coil h22 dizzy so i dont have to buy a h23 92-95 dizzy?

Wireing
iam using f22 ond1 harness i need to switch over the egr vale. run wires for the vtec, vtec pressure, knock, iabs, switch over the front coolent neck for the extra sensor that the f22 has..... if iam missing something let me know please.....