MS stays powered up with key off
#2
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The MegaSquirt ECU does not need a full time powered +12V source, and should not be connected to one. Power up is soley commanded solely by a switched +12V in. If your ECU is not shutting down it is because your switched +12V is not depowering when you turn the key off.
#3
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This is not happening all the time. It happened today. Last time I remember happening was 2 weeks ago and then it was gone until today.
#4
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Forgot to mention that when this is happening, if I disconnect the main ms harness and then connect it immediately it remains off.
EDIT: From Peter Florance 2009 presentation:
• MS stays powered up with key off.
– Injectors or idle valve not connected to same
switched +12V as MegaSquirt box
EDIT: From Peter Florance 2009 presentation:
• MS stays powered up with key off.
– Injectors or idle valve not connected to same
switched +12V as MegaSquirt box
#9
and both those symtoms make me still wanna say the ign swtich, my radio used to stay on once in a while, along with something else i forget, but one day the car finally didnt have the start position, and i had to jump it to get to work. but i took apart that switch and the contacts were all begining to melt and just look shitty, so its worth a look....
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