[skylinergtr]

OP, how much did you drive the car before taking it to aircare? your vehicle should have been running for atleast 30-45 minutes and up to operating temp.

you want the lean the car out for lower HC.

first, replace your coolant temp sensor just for regular maintenance, its cheap and can be affective. Unless you want to actually go through testing and dianostics. It could be a possible o2 sensor malfunction too. Regular gas, 2L of methyl will bring your HC's lower. Enough to pass? well you're going to have to try and see.

Good luck.