[greenformula92]

did u disconnect the battery when u replaced the MAF? If you don't the computer will see a new sensor as as invalid part because it stores its serial number....but once you disconnect the battery it loses all serial numbers and relearns them on first start. another thing to consider is relays. there are the 3 on the firewall but there is also one on some cars on the passenger side of the radiator. i would also check the condition of the MAF harness as I have had one burn up on me before