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hi, I would make sure that the connector to the maf is connected right ,look for bent terminals .
also, check to make sure there are no vacuum leaks/hoses that are not attached .
just by spraying should not have disturbed anything ,but the small resisters in the maf sensor may have broken ,in that case a new maf sensor will be needed ..jazzmaster ..
yes, if there is even a small leak this will bring up an engine code ,and it will still run even if the resister is broken but it will run bad .
sometimes these can be disconnected(that is the electrical connector ) and see if it runs better ,most times that is the maf sensor being bad or dirty ..thank you ..jazzmaster ..
yeah, if it is running lean ,that may well be a vacuum leak ..let me know ,thank you...jazz...
if you still need help -please let me know.If I helped you please rate me positive and if need be can continue on ,,thank you ...jazzmaster ..