When your MAF goes bad the long term fuel trim will usually be out on the high side. Changing the MAF will bring it back in, which should over time cause the light to go out--assuming there are no more codes.

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Lenny

There are only three sports: bullfighting, motor racing and mountaineering; all the rest are merely games. --Ernest Hemingway

'10 GL550/'04 BMW 545/'99 BMW 323/'98 ML320/'87 VW GTI (race)