[Gmecm] Injectors Not Firing...

Jared Ryan jryan
Mon Oct 9 01:56:20 UTC 2006


Does your PROM have VATS enabled?  That's what messed me up when I 
converted to TBI.  I had exactly the same symptoms: everything was fine 
except no fuel was being injected.  The VATS-enabled ECM was simply 
trying to keep me from stealing my own car.

  ---> Jared Ryan <---
jryan at caminofx.org | http://www.caminofx.org

On Oct 8, 2006, at 8:49 PM, Clair Davis wrote:

> 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
>
> _______________________________________________
> Gmecm mailing list
> Gmecm at diy-efi.org
> Subscribe: http://lists.diy-efi.org/mailman/listinfo/gmecm
> Main WWW page: http://www.diy-efi.org/gmecm
>





More information about the Gmecm mailing list