hi all..my ses light had come on first itermittently then finally steady..car began to hesitate and run rough..brought it to dealer and after a few days of running tests and trying to narrow down the cause by interpreting the codes it was showing it resulted in the maf going bad...tech said that the maf went bad because of the k and n airfilter that i had istalled..the oil in the filter evetually caused the maf to go bad..i knew it was a possibility when i installed it becausse some people on the forum said that it may cause maf to go bad but others had changed it and had no problems..buy anyway seems to be runnig fine now..so ayone wanting to use k and n airfilter just beware...thanks rob