injector resistance

[Scott Linder]

Ron,

injector resistance is a wide section of discussion.

Ex:  A Bosch unit in a 2.8 GM is usually from  15-16 ohms and the multec is
approx 12 ohms.
usually the ecm could handle the current from either unit but the bosch units
would operate at a slightly lower current draw.

peak and hold units are usually 1.5 to 3 ohms if in the GM product lines.

High performance units are sometimes low resistance due to the pintle not
wishing to lift at high pressures.


Jim Linder
the injector " guru"
www.lindertech.com


Ron Tyler wrote:

> Scott,
>
>       I am not refering to any particular injector. I've been asked on
> occasion what is neccessary and I would like to give a better answer
> than "I think you need.."
>
>       My understanding has been that high impedance needed no resistance
> and that low needs around 5-6 ohms. Your saying that it's dependant on
> brand/model? Bosh would'nt be the same as Multec?
>
>       Where does Peek&Hold/Saturated fit into this picture?
>
>   Thanx again, Ron Tyler
>
> >
> >   Ron,
> >
> > There is basicly two styles of injectors on the market.
> > 1=high impedance  12-16 ohms
> > 2=low impedance   1.5-3.0 ohms
> >
> > Both styles have a different purpose in life and each operate somewhat
> > differently especially in the respect of applied current to operate.
> > Usually tbi single units are low resistance but that is not always true
> > as some port fuel ( ex: gm quad four) are low resistance also.
> > Ohm testing is NOT a solid test as a injector winding may test perfect
> > on a ohm test and fail under load.
> > As a fuel injector reconditioning shop we current load test each
> > injector 4-5 times during the reconditioning process as a quality
> > control issue.
> >
> > What particular injector were you refering to and i can give you the
> > exact specs.
> >
> > Jim Linder
> > the injector " guru"
> > www.lindertech.com