The M54 engine utilizes a "Hot Wire" in the MAF. Air passing through the MAF cools the "Hot Wire" and from the voltage that is used to keep the "Hot Wire" hot the computer can determine the amount of air rushing through the MAF. Like a light bulb, the "hot Wire" eventually starts to deteriorate until it fails. Since the "Hot wire" is not getting as hot as when it was new, the computer is just assuming that a lot of air is rushing through the MAF, so to accommodate this rush of air, the computer commands the injectors to provide additional fuel to the mixture.

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2006 Infiniti G35
2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD
Lotus Europa 1970 Destroyed by fire
Lotus Europa 1970 S2 Renault Powered
Lotus Type 52 1970 Twincam Webers Powered
PORSCHE 911 Targa 1982 The Garage Queen
Audi Avant donated to Kars for Kids
BMW 525IT Sold
Audi 4000CS Quattro Sold
Jensen Healey Lotus Powered Sold
Opel 1900 Sold
Triumph Spitfire 1971 Sold
Triumph Spitfire 1968 Sold
Plymouth "Cuda" 340 Six pack SOLD