I just purchased volve 2004 S40 1.9T. average 15-16mpg. I read couple post in the forum, but there's nothing specific about fixing this. There is no engine check light on. Anyone has any idea or having the same problem as i do?

Thanks,
Kent

 

MAF might be bad, check your 02 sensors, check for leaks of any kind.

 

This car was brought out from the dealer, it was tuned up and ready to go. I only got the car for about 1month. Let me check back what kind of tune up they did. There is no leakage also, because i brought the car to the shop to do a little check-up on the car. If i decide to change the MAF, do you know how much it would cost and how to do it? I'm low budget.

thanks