2002 Nissan Altima service engine soon

2002 NISSAN ALTIMA
103 MILES • 4 CYL • 2WD • AUTOMATIC
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MMARIUSMV
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today i change the front right low beam bulb, to do that i had to remove all air system including MAF, without touching the sensor or something else i deposited all in the trunk. i change the bulb, reinstaled everything back, connected back MAF, i start the engine and service engine soon came on.
i would like to know what make the check engine to come on.
Nov 1, 2008 at 5:48 PM
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