CAR CRANKS BUT DOESN'T START ONLY AT THE END OF THE DAY. on 2002 Mitsubishi Eclipse

Car has 185,000 miles. I had the starting and charging system tested and everything tested fine. The "service engine soon" light recently turned on. The car starts fine in the morning and when I go out for lunch. The last 3 evenings is when it has acted up. Day 1 it needed a jump start. Day 2 it cranked but wouldn't start until about 15 minutes of trying. Day 3 it took 30 minutes of trying to get it to start and when it started it made a squealing noise for about 10 seconds and then ran normally. Any ideas of what it could be? Thank you!

by in Rancho Palos Verdes, CA on October 11, 2012
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1 answer
ANSWER by , October 11, 2012
have eng codes scanned and post so we can adv