h22a swap in 96 prelude
08-26-2013, 01:02 PM
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h22a swap in 96 prelude
I bought a 96 prelude as a project car. it has a jdm h22a and hasn't been running since the swap was put in. the problem is not getting fuel. the pump works and it is getting fuel to the rail. I do not see a resistor box and the ecu is a p13. My question is with the stock jdm inectors OBD1 do you need to have a resistor box or should they work without one. I am getting spark all grounds are connected (yes the one on the thermostat housing is) just no fuel and no cels.
08-26-2013, 01:08 PM
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Re: h22a swap in 96 prelude
yea you need the resistor box, you might have damaged the ECU trying to start it without one. get a resistor box and see what it does, if you get fuel but still have an issue, blame the ECU next
08-26-2013, 01:29 PM
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Re: h22a swap in 96 prelude
you could buy one online but they're prob overpriced for what they're really worth. you can use a DSM one, I don't remember the difference between the plugs though. anything that has low impedance injectors will have one, and the wiring is fairly simple to convert to whatever application you need.
08-26-2013, 01:35 PM
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Re: h22a swap in 96 prelude
No, you don't need a resistor box with obd1 injectors, they are already high impedance so it isn't necessary. Obd0 injectors need a resistor box because they're low impedance.
08-26-2013, 01:54 PM
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Re: h22a swap in 96 prelude
Eh, OBD1 JDM Prelude/Accord injectors are low impedance, that's how I know you can kill a P13 trying to run without a resistor box.
Edit: Might even be USDMs as well, deff the OBD1 Prelude/Accords though. I don't fuck with USDM H series though.
Edit: Might even be USDMs as well, deff the OBD1 Prelude/Accords though. I don't fuck with USDM H series though.
Last edited by 83Stang5.0; 08-26-2013 at 05:41 PM.
08-26-2013, 05:40 PM
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Re: h22a swap in 96 prelude
If you're running high impedance injectors(so you don't need a resistor box), there is a "dead/jumper" plug that plugs in where the resistor box goes. This basically connects the injector signal wire to the 4 injectors. You need the resistor box if your injectors are the ones for that engine. If you didn't need it, you can take a 6 pin dizzy plug, repin it correctly, and tie the 5 wires together.