RicanRacer253

Ive been talking to a friend of mine that has a h22 in his ex coup. He says i need a injector resistor box? What is the purpose of it and do i really need it for my swap?

VTECVillain

You MUST use a resistor box if you are running a P13 H22A ECU. The purpose of the resistor box is to work in conjunction with the ECU to provide the proper impedance for the injectors. You can get them from almost any OBD0 MPFI Honda/Acura and later year Accord's and Prelude's. If you need one, they can be had pretty cheap and are usually an easy find in salvage yards.

Morhpeous

i thought if your running the stock h22 obd-1 peak and hold injectors on any obd-1 honda ecu u must use a resistor box???

Honda_Tengoku

The injector resistor box is for the injectors so they function properly at the correct voltage (peak and hold 2-4 volts). Saturated injectors use 12-16 volts and do not need a resistor box. 92-95 H22A's have peak and hold 345 CC injectors. So for those injectors u will need a resistor box.

Turbogixxer

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Honda_Tengoku &raquo;</TD></TR><TR><TD CLASS="quote">The injector resistor box is for the injectors so they function properly at the correct voltage (peak and hold 2-4 volts). Saturated injectors use 12-16 volts and do not need a resistor box. 92-95 H22A's have peak and hold 345 CC injectors. So for those injectors u will need a resistor box.</TD></TR></TABLE>

It is ohms, not volts. All injectors have a 12v trigger.

Honda_Tengoku

opps. I meant ohms. Damn what was I thinking.... thanks again for the correction.

Turbogixxer

93H22ACX

yeah you need the resister box if you are running the low resistant injectors. you can also get the 97-up prelude injectors and call it a day with no resister box.

RicanRacer253

I got an obd 2 97 up h22a. Do i still need to use a resistor box?

Qfactor

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbogixxer &raquo;</TD></TR><TR><TD CLASS="quote">

It is ohms, not volts. All injectors have a 12v trigger.</TD></TR></TABLE>


Negative, injectors are ground triggered by the ecu (load to ground).

AntonY1343

So i have a SIR H22a that came out of a 97 lude and people are telling me to run the resistor box and if i dont the motor will eat itself from the inside out i have a p13 ecu and the jumper i need to swap into a 98 hatch could you shine some light on this for me?

JRCivic1

Are the fuel injector clips on the H22A the same style as those in your '98 Civic (black dual pinch OBD-2 style) or light grey with a metal lock wire ???