Quote:
Originally Posted by Vic1947
Engine sounds normal, just cranks for a really long time. The Advanced Keys box eventually times out and you have to reset it for a second try. Usually starts on the second attempt.
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This sounds like you have an issue with the Advanced Keys system communicating with the ECM. This is just a guess, but if resetting it makes it work, something may not be working in the system on the first attempt. If it's not in the AK system, it might be whatever wire that system uses to send the start signal to the ecm. If the ECM is unable to trigger the ignition or fuel injectors, it won't start, but it needs to be told you want it to start. The starter can't do that, nor will the large purple wire sent to the starter via the neutral safety switch. Easiest thing to check is for a loose wire or connection. Likely not something that would be fixed with a reset though.
You probably won't be able to try this until you get home, but if you have a way to bypass the AK system, you could test to see if it fires right up without it.