[Diy_efi] Injectors Not Firing...

Clair Davis clair.davis
Mon Oct 9 03:09:12 UTC 2006


Haven't checked the BIN, I don't have any way of doing that right now.
Looks like I'll have to make a call to Moates this week...

Clair


----- Original Message ----- 
From: "Charles Woock" <atomic at extendwireless.net>
To: <diy_efi at diy-efi.org>
Sent: Sunday, October 08, 2006 10:00 PM
Subject: Re: [Diy_efi] Injectors Not Firing...


> Did you look at your bin to what you have for cranking fuel?
>
> Charles
> ----- Original Message ----- 
> From: "Clair Davis" <clair.davis at charter.net>
> To: <diy_efi at diy-efi.org>
> Sent: Sunday, October 08, 2006 8:51 PM
> Subject: Re: [Diy_efi] Injectors Not Firing...
>
>
> > DOH... perhaps I should mention that this is using a GM '7730 ECM...
> >
> >
> > ----- Original Message ----- 
> > From: "Clair Davis" <clair.davis at charter.net>
> > To: "diy_efi" <diy_efi at diy-efi.org>
> > Sent: Sunday, October 08, 2006 8:47 PM
> > Subject: [Diy_efi] Injectors Not Firing...
> >
> >
> >> Got everything to the point that I could try to fire the old Plymouth
up
> >> today.  Everything SEEMS to work, except the injectors.  No gas smell
in
> > the
> >> tail pipes or intake, no flashing on the noid light, I'm guessing the
> >> injectors aren't injecting.
> >>
> >> Here's what I know:
> >> - #1 plug is firing on the early side of TDC
> >> - spark is nice and regular (according to the timing light)
> >> - there's over 40psi of fuel pressure at the regulator
> >> - there's fuel in the rails
> >> - the fuel pump relay is doing it's thing
> >> - no fuses appear to be blown
> >> - ECM is grounded to the engine block, and engine/chassis grounds are
> >> good
> >>
> >> Here's what I don't know:
> >> - does the ECM case need to be grounded? (assuming not)
> >>
> >> I haven't hit my 1990 Camaro FSM yet, but I figured I'd better throw
this
> >> out to the masses anyway.  Anyone have a clue as to what's going on?  I
> >> really think everything is pretty solid, from a wiring standpoint, and
> > fuel
> >> is obviously not an issue (other than the small leak at the pump, and
the
> >> fact that it's not getting in to the combustion chambers).
> >>
> >> Any help would be greatly appreciated!
> >>
> >> Clair
> >>
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