i meant check your actual spark plugs.
random misfire makes me think it might not be an ignition problem, pull your plugs and check the electrode's.

if hes getting that intake sensor code i would change the sensor or at least check the connector to make sure it is not loose. I thought u meant intake air sensor like the MAP sensor, u meant intake air TEMP sensor. Yea change that sensor or at least check it for resistance and post your findings here.

~kris