89 jeep cherokee emission light on?

[buzboy89]

my emission light on my 89 jeep cherokee wanted to turn on today. it runs fine and i dont have any vaccum leaks .. i was installing a water temp gauge and accidentally pulled the map sencer vacuum line and the light is now on.... but i have pulled it off wile it was running before and the light never came on... i dunno any thoughts?

 

[Anti]

Put it back on and thelight will eventually turn off. Or disconnect the battery for a few minutes.