can you use a multimeter to determine the impedance of an injector. i have some 550's i think are giving me problems. low impedance circuit with high impedance injectors, not starting, yada yada yada.

 

Yes. Regular resistance scales. Impedance is not exactly resistance, but with the meter's puny power supply, it won't matter.

Low imp injectors are around 3 ohms each (across the coil), hi imp guys are around 12 ohms each...

 

Maybe you need to change your screen name...

 

I'm thinking that you may need to change your screen name...

Sorry about the almost double post...