12.2 volts car dies??

[Cody]

Replaced coil just now, didn't help, fyi.

-Cody


---------- Original Message ----------------------------------
From: "Cody" <Cody at mail.craincorporated.com>
Reply-To: <Cody at mail.craincorporated.com>
Date: Sun, 14 Sep 2003 22:01:03 -0400

>So I got my 2nd EFI conversion 5ktq ('87) done today and I've got really wierd problems (that are carrying over from the CIS problems). Im watching the battery voltage and it shows 13.2 @ idle (power invertor plugged in for laptop so I would say this is an exceptable number), if I turn the lights on the voltage goes to about 12.8 and the car starts missing. When the rad fan turns on the voltage goes to about 12.2 then the motor just dies imediately. Watching my laptop on the EFI computer shows that it is functioning properly at these voltages, and it is designed to go down to 9v without problems.
>
>I am thinking maybe the coil is going bad? 12.2v should be plenty for the car to run at idle, I would understand if it had a high rpm miss @ 12v but not dieing at idle.
>
>Also earlier I was having an intermitent low fuel pressure only after driving for a while. Discoved stuff in the FP screen, so I deleted the screen. That issue seems fixed now, but the voltage problem is possibly covering it up.
>
>-Cody
>2x 86 5ktq
>'87 5ktq (now running on EFI)
>'88 80 4cyl
>
>