OP might try cleaning his with CRC MAF spray cleaner first.

Cheap enough its worth a try.

Tim - I've also read there is a threshold that must be passed to set the CEL. Mine did set codes when it went bad; codes, no turbo, and it falling flat on it face between 3-4K made it easy to figure out.

__________________
Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)