injector question

[necessaryevil]

ok so im going from dpfi to mpfi with a p28, would it be possable to run obd2a injectors and not have to use the resistor box?

 

[K2e2vin]

You only need the resistor box for OBD0 injectors.

 

[necessaryevil]

that cant be right becouse ive seen a 95 lude h23 with a resistor box

 

[K2e2vin]

I was referring to Civic and Integras but yeah, the F/H family is more complicated. My OBD1 Accord has a resistor box too.

 

[shadyman8]

most obd2 injectors are saturated and do not need the resistor box(civic's and integras) ... only peak and hold injectors need the resistor box(prelude's and accord's) make sure you are getting the injector size you need check out this site Phearable.net - Electronic Fuel Injection Tuning Solutions - Hondata, Neptune, Crome, Uberdata, Ectune, AEM, Honda Tuning, Widebands, Fuel Pumps, Intercoolers, Turbos, LS/VTEC, ECU Chipping, Chipped Ecus, P28

 

[necessaryevil]

so if i have a p28 and run the wires from the ecu to obd2 injectors and then ground out the other side of them i should be good right?

 

[K2e2vin]

No, you do not ground out the other side. The ECU controls the injectors by grounding them out; the other wires(usually yellow with black stripe), goes to a 12v switched power source.

But, yes, you just wire the (Civic or Integra) OBD2 injectors directly with no resistor box.

 

[necessaryevil]

and the obd2 injectors are high resistance correct?

 

[shadyman8]

here look at this diagram
Tech - Injector Wiring
if you have injectors and you dont know what they are ohm them out with a dvom