If all you have to offer is that the ECM and the wiring harness need to be
changed don't waste our time, however if you can help me please respond to:
tom...@mciworld.com
I have a couple of concerns:
1.) Can anyone supply me with a wiring diagram specifically for a 1994
chevy pickup with a 305 v8?
2.) Is there an Electronic Spark Control Module on this vehicle and if
so where is it located, it's not on the intake manifold any more.
TIA
Tom Cook
On Wed, 15 Dec 1999 18:34:39 GMT, "Tom Cook" <tom...@mciworld.com>
wrote:
The throttle body intake should be exactly the same on both engines
(about 600 cfm) and should wire up just the same, same for the knock
sensor, temp, oil pressure, and all the wires that go to the coil and
dist cap....
I would wonder if the computer is different...not only the prom
chip...
let us all know what the "runs badly" means and I will try to help!
On Thu, 16 Dec 1999 15:48:59 GMT, "Tom Cook" <tom...@mciworld.com>
When I start the engine with the 305 PROM installed it starts fine and
runs for about 10 to 20 seconds ( until the system enters closed loop
operation) then it goes rich and eventually stalls. I have had it hoked up
to a scanner and confirmed that the problem starts when closed loop
operation starts. I also confirmed through the documentation provided with
the scanner that the chips' scan codes are correct (4008 for the 4.3 and
5055 {I think} for the 305), I don't remember the number for the 305 but it
was the right one.
When the 4.3l chip is installed the vehicle starts OK and will run. The
Idle is low and the shift points are slightly higher than normal. with the
scanner connected the closed loop mode seems to be working properly. It
goes from rich to lean etc. in what looks like a normal pattern. The truck
seems to have good power and except for the two symtoms mentioned above it
works ok.
TIA
tom
"jason" <jasont...@hotmail.com> wrote in message
news:DA29181761D1EDC7.692F86AE...@lp.airnews.net...
On Fri, 17 Dec 1999 04:08:59 GMT, "Tom Cook" <tom...@mciworld.com>
"Tom Cook" <tom...@mciworld.com> wrote in message
news:r8r64.1316$sg.180328@pm02news...
On Fri, 17 Dec 1999 13:45:59 GMT, "Tom Cook" <tom...@mciworld.com>