ECM bench bits
A70Duster at aol.com
A70Duster at aol.com
Tue Feb 19 20:50:33 GMT 2002
<< If your seriously think about playing with code for your car, you really
need to run the changes first in a way that you can monitor them and make
sure they are relatively safe before taking to the open road.
Hence the need for an ecm bench.
Just to make life a little easier, and to keep it looking neat an clean,
there are a few little dodads that will help.
Velleman-kits has a Signal generator #MK105 and a sound generator #MK113,
you can play with component values on the caps for the 555 and add a
variable resistor to change the freq out put. You need these for the RPM
input, VSS input
then to get a cam synch you can use a Rainbow kit CL-1 Light chaser to get a
divide by 6 for the cam synch.
Add some sort of scan tool, and you can drive your ecm atta 150 MPH on your
kitchen table for hours.
Oh, and they have a stepper motor kit that you can slow down to use in IAC
diagnostics.
Bruce >>
If not, it may look something like this....lol
http://www.diy-efi.org/gmecm/projects/ecm_testbench/ecm_tbench2.jpg
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