usually its been good, but i dont seem to understand why but one of my fans sometimes is always constently running throught 1st-4th gear, or so i hear... i mean usually just first gear... but some of my buddies says its a the trans fan tho too... anyone know why? i currently have a CEL 0102,1137,1139... rear o2 sensors and MAF

which fan, the electric fan or the mechanical fan connected to the engine.

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An audi without quattro is just a VW

Reset the codes. If the P0102 comes back, replace the MAF.
I bought a remanufactured MAF from
www.ecstuning.com

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2001 A4 1.8T Q Casablanca White, Tip, ESP, Xenon and Premium

i replaced the maf... p0102 still up.. im thinkin coil packs or spark plugs, and its the oil one i beleive