low ohm injector ona 749

[DC Smith]

Nolan,
 I havn't ohmed a 749's drivers, but I would assume it should be at
least a meg or so. You don't want the injectors triggering when not
wanted or needed. I have ohmed quite a few 7148's and they show a open
on a good driver circuit.
 I assume you know this, but the ecm triggers the injector by grounding
one side, while it gets it's B+ feed directly from the ignition switch.

 Good luck!

Nykyforuk wrote:
> 
> >
> >Date: Sun, 03 Oct 1999 06:42:44 -0500
> >From: DC Smith <morepoweral at tetranet.net>
> >Subject: Re: problems with 749 with low imp injectors
> >
> >Nolan,
> > Ohm the offending trigger circuit to ecm ground and maks sure it's not
> >shorted. It sounds like you fried a driver chip..
> >
> >Nykyforuk wrote:
> >
> >> driver. Is there a way to test the drivers to make sure they are working
> >> proberly?
> >
> >***********************************************************************
> >Dan Smith      84 Regal   12.03 at 110.45     GSCA# 1459
> >St.Charles, Missouri
> >mailto:morepoweral at tetranet.net
> >http://www.tetranet.net/users/morepoweral
> >***********************************************************************
> 
> Thanks I'll try this on the weekend as I'm working out of town right
> now. Should there be a certain amount of resistance to the driver?
> 
> Thanks
> Nolan

-- 
***********************************************************************
Dan Smith      84 Regal   12.03 at 110.45     GSCA# 1459
St.Charles, Missouri 
mailto:morepoweral at tetranet.net               
http://www.tetranet.net/users/morepoweral
***********************************************************************