resistor box question

[88civic_hatc]

do obd1 or obd2 injectors need a resistor box

[Z0_o6]

factory honda injectors obd-1 and up (preludes may be an exception, but im not sure) do not require a resistor box. the easiest way to find out if you need one is to use a multimeter and measure the resistance across the injector. if they read at roughly 2 ohms, they are peak and hold and require a box. if they read 10-12 ohms they are saturated (90% of OEM injectors are this style) and do NOT require the box.

If you are installing aftermarket injectors, check with the manufacturer to find out which type they are, or use the method described above. Technically a resistor box is a band-aid and to PROPERLY use peak & hold injectors, you would need either a stand-alone EMS, or an injector driver module. The box will work though.

P.S. this is general info since you can't seem to read stickies such as one of the VERY FIRST ONES that tells you what info we need to help you better.

[88civic_hatc]

Thanks man much appriciated