Answer

<p>Greetings XXX XXXXX,</p><p> </p><p> Your vehicle does have a "learning" ECU as you call it (technical term is adaptive strategy)and it is reset to basic setting when battery is disconnected for extended periods...It is possible that it could give you a longer than usual crank until it relearns,but I would watch it closely to be sure thats it...could be a fuel system rest pressure problem...as far as the ticking noise,the noise should go away immediately after a road test at normal operating speeds...once oil pressure is brought to max all noises should be eliminated...it is common for hydraulic buckets(lifters)to bleed out after sitting , but they pump right back up after a test drive...I advise drive the car 50-100 miles and if you still have issues,bring car back immediately...this is more than enough mileage to eliminate your concerns...jeffrey590 </p><p> </p>