I've been plagued by the check engine light as well. 40K miles. The dealer says the "secondary air pump" has gone out. (Service manual says it has something to do with exhaust/catalytic converter/emissions). So they replace that and not 8 hours after I've gotten the car back the light is back on. I take it back and all they do is reset the light. Its on again now. Any ideas? Any one ever have any trouble with this part. This dealer is hardly competent on this car, they've pretty much told me so... I only have 5 months left on the lease but I don't want to stare at the light for that long...