Crooked Dealer?

[ae2598 at wayne.edu]

On Fri, 26 Jan 2001, Mitch Louole wrote:

> I'd have to agree w/ most here and say all the GM systems I have seen act as 
> independent systems if there is no ECM signal.
> 
> Maybe I missed it here but, the way I see it, NO ECM power, no injector 
> signal, no fuel from the injector.  No check engine light, sounds dam close 
> to no ECM power.  Build enough oil pressure, and the fuel pump will get 
> power.  (Most systems I've seen.)
> 
So the fuel pump can power up even w/o a signal from the ECM?  I would've
sworn I read somewhere that the ECM closes the fuel pump relay.  Again,
easy enough to test..


----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org