ECU problems (7730 cold solder?)

Vance Rose javer96 at snowcrest.net
Mon Nov 16 06:12:25 GMT 1998


At 09:37 PM 11/15/98 EST, you wrote:
>Hi,
>I just got finished adapting a GM EFI system to a different car.  I had just
>gotten all the kinks worked out and had the car running well when... it just
>died.
>Specifically,  it is a 7730 computer and after a bunch of fiddling and
>figureing on the side of the road (which I won't bore you with) I figured out
>that the computer suddenly started telling the injectors to open and stay
>open... no pulseing, just constantly spraying.  Even if the motor is not
>running or turning over, the moment you turn on the ignition, the injectors
>lock open and stay open, spraying fuel and drowning the engine.
>The first thing I did was check for a short in the wiring harness, but found
>none.
>The question I have is:  Can anyone think of anything other than the ECU (or
>harness, which I've already checked) that could be causing this?
>And has anyone had this happen to them before? is this a common way for these
>computers to go?  I noticed in the archives a reference to "cold solder 7730
>ECUs" being a problem.  Perhaps this is my problem.
>I just wanted to check in with the knowledge base here before I lay out a
>bunch of cash on a new one.
>TIA,
>Ted
>
>____________________________________________________________________
>Get free e-mail and a permanent address at http://www.netaddress.com/?N=1
>
>Hi Ted	

	Ya can get one from boneyard for about $50.00. Just swap in your prom. If
ya need one for test purpose post me off list. Have one that for a future
tpi swap. Just have to get fuel rail,inj,throttle body.

Vance



More information about the Diy_efi mailing list