the other day my brother was walking to his 2004 ltd. crossfire and as he turns the key all the way the engine will not start...so i reset the computer and the car starts for a breif second and shuts back off and will not start again unless i reset it... does anybody know what the problem could be because autoshops it was sent to by tow truck can not figure out the problem and chrysler dealership wants $150 just to figure out the problem...could it be the rellay control module or the oxygen sensor?