its a 1993 del sol with a h22a4 converted to obd1 all stock using a chipped p28 with p13 maps! it still has the original peak and hold injectors so do i NEED to have a resistor box? i dont have a multimeter to do the test to see if it is reading the right ohms so im asking u guys.

 

h22a4 uses low impedance injectors. So you'll have to use the resistor box.

 

could that be why its running rich?

 

ya, they need that resistance to knock the power down. why not just throw in some high impedance injectors on the rail? I don't know what is compatible with h series, never messed with those. Mabe someone can chime in?

 

damn i had some 370cc ones too i shouldve just thrown them on.. but ill get a resistor box and a multimeter, does any1 know where i can get a digital multimeter thats not gonna break my pocket?