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.

 

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

 

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