PCM Input Signals
01-29-2006, 08:15 AM
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PCM Input Signals Hi everyone, I'm new to this forum! We are a small company in Switzerland, building our own cars using an 1999 LS1 engine and a Porsche G50 gearbox.
We really only want to use what is really necessary and therefore I would need to know the following:
1. for what does the PCM need to know the fuel level in the two tanks? Will it work without the signal?
2. Same for the EVAP Vacuum Purge Switch signal: what is it used for and will the PCM work without that signal?
I assume that some of this stuff is only used in the ODBII diagnostic mode and we won't use that anyway!
Thanks for the help!
Francis
We really only want to use what is really necessary and therefore I would need to know the following:
1. for what does the PCM need to know the fuel level in the two tanks? Will it work without the signal?
2. Same for the EVAP Vacuum Purge Switch signal: what is it used for and will the PCM work without that signal?
I assume that some of this stuff is only used in the ODBII diagnostic mode and we won't use that anyway!
Thanks for the help!
Francis
