cyhm

Before I get started, yes, I do know that dsm injectors can be put in an ek as well as a resistor box or resistors inline with the "dead end plug". The question I have is, if I use obd2 to obd1 injector jumpers, can I simply wire the 10watt 10ohm resistors into the "right" wire of the jumpers? I am looking for a much more temporary install than hardwiring a resistor box in, because I will be putting stock injectors in every year for inspection.

turbohatch96y7

iTrader: (15)

Yes

And to clarify they go to the yelw/blk wire 12v positive

4drEF

I bet if you did a clean install then inspection wouldn't care.
Why would they?

cyhm

Great, thanks. That'll make things quite a bit easier as I need the injector clip jumpers anyway.

Also, the clean install is not what I am worried about. It is the removal of the resistors from the circuitry when I want to go back to stock high-impedance injectors for OBD2 inspection. The individuals that inspect my car are "blind" lol The computer, however, is not.

cyhm

UPDATE: I have an additional question about this. Will a 10% tolerance resistor be an issue? I have not been able to find a 10w 10ohm resistor with a tolerance below 10%

4drEF

That's kind of my point. If the ECU is scaled for 240cc injectors, then it doesn't care if you have low or high impedance injectors. So I don't understand your point in wanting to switch back to high impedance for inspection.

cyhm

Low impedance injectors will run fine for a short period without the resistors, but the whole point in adding them is so that it does not burn up the ECU. Most circuits in the ecu run off of around 5v, so that high resistance of the injectors is accounted for. If you put in lower resistance injectors, the ECU may see voltages and amperages higher than it can handle. The injectors have a 12v constant power to them, but the ECU provides them with a ground when they are duty cycled (injectors are just a solenoid). The resistance of the injector consumes a portion of the voltage, so the ECU should never see that high voltage by the time the ground consumes what is left.

I am switching back to high impedance injectors because they are stock. The low impedance dsm injectors are 450cc, so obviously my stock obd2 ecu will not run them. The switch is due to injector flow, not impedance. However, the difference in impedance requires additional changes as well.