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Re: new subscriber please help ecm problem
nacelp wrote:
>
> The injectors key on should have power to them. The ECM grounds them to
> operate.
> If you have pressure, and pulses they sould work. A fuel filter can be so
> plugged to pass a pressure reading but not enough to support engine
> combustion. Same with pinced line, ot plugged fuel sock (in the tank). You
> should hear the pump run for a few seconds when you turn the key on to prime
> the system.
> Once you have oil pressure the pump should run, might try jumoing oil
> pressure switch to get pump to run
> Grumpy
> wanting to learn it all, takes a lot time, and work.
>
This is all good advice (as usual!)
I would also check the resistance of the injectors. It is common for
one or more to internally short. When this happens the computer sees it
as a direct short and will not fire the injectors. I believe that they
should be between 10-12 ohm each on that car. They also have a tendency
to be fine until warm, then more may fail.
Rex Weatherford
92 Beretta GTZ Quad4 (lurking and learning slowly)