Voltage Question

The ECM relies on a clean 12 volts to operate correctly. The injector voltages come from a fuse, not the ECM. The ECM grounds the injectors to fire them.

So, if I'm getting half the voltage to one injector that I'm getting at the other one where does the problem lie? The injector is new and wiring is good.

. . Re: Voltage Question Group: alt.trucks.chevy Date: Fri, Nov 7, 2003, 7:42pm From: snipped-for-privacy@bowtie.rules (KB)

So, if I'm getting half the voltage to one injector that I'm getting at the other one where does the problem lie?

The injector is new and wiring is good. ======== ========

The injector or the wiring.

hopefully helpfull, Scrib Abell ~:~

My first guess would be to take at look at the spot where you did the repair. Did you do a real good job of cleaning and soldering the wires. Just twisting them together is not good enough.

If that is good I would then try following the wire back. It seems to me that there must be some poor connection.

Seems ironic doesnt it? :)

Are you checking the power side or the ECM side? Are you checking with or without them pluged in?.........

I'm checking at the injectors, key on, engine off.

"> > > .

==================== That didnt answer my question. All the things I posted above are at the injector....

Injector side, unplugged.

=======================

So, you have 12 volts to one of the injectors, and 6 volts to the other to ground with them unplugged? If that is the case you have a bad connection. The voltage simply comes from a fused and switched source from the fusebox. This problem is very odd, you better check it again.

Thanks, Scott. I'll check it out again.