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2003 Z06 starting problems=help

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footdoc
6/29/2005 11:56:10 PM
Two weeks ago I tradded a 200 M-coupe in on a "03 Z06" it has only 5,280 miles on it. Everytime I take it for a spirited run I have difficulty starting up again after if has sat for awhile. It turns over easily however it may take two to three attempts to start it. I have taken it back to the local Chev dealer but they could not find anything wrong, what else?? If any one has had this problem I would appreciate a fix while I'm still on warrenty
bmwdiver
6/30/2005 12:08:13 AM
as long as it is cranking over fine i could possibly be an intermittent problem with the PCM and the Theft deterant system, ( ie maybe a sticky relay or dirty switch contacts) if the TDS ( theft deterant system) and PCM arent communicating properly the PCM cuts off fuel to the injectors. if the relays were sticking that would explain why it would work after a few attempts, same with the dirty contacts in the ignition switch.



Pbtrick
6/30/2005 5:12:40 PM
bmwdriver, is there a simple fix to this? i am guessing not?
bmwdiver
6/30/2005 8:32:53 PM
aside from removing most of the dash and trouble shooting the entire system no, but just incase you are interested i'll post the schematics as soon as I get home.




bmwdiver
6/30/2005 9:34:43 PM
duh what am i thinking, you said you were still under warranty, tell them the BCM is having trouble exchanging the unique password with the PCM causing intermitant fuel cut off problems, (usually caused by a faulty ground or bad connection somewhere). when they look at you baffeled because the counter person has no idea what you just said, just tell them to consult the theft deterrent section of the manual it describes symptoms very close to what you have described.




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