originally off a 01 SSEi, now on my 00 SSEi
AFH50M-05

originally off a 98 GTP
AFH50M-04

Just curious but why is this info helpfull? Sorry for the dumb question, but I don't even know what that MAF does?

The MAF is short for Mass Air Flow. It'* one of the sensors that is in the throttle body, and measures the amount of air going into the engine.

Different years and trims use different calibrations, which makes the sensor somewhat expensive new since there is no master calibration for all engines. This info will be helpful for those of us that junkyard hunt and find a car with the calibration that is needed.

Thanks for the clarification, I get it now.

1997 Buick L36

AFH50M-04
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I didn't think it'* that important as long as you get the right year and engine type. Then again, I hadn't junkard-hunted any MAF'* recently.

LQ4

Trouble is, at least on Series I MAFs, there is no part number listed on the MAF that cooresponds with any GM or AC Delco number.

For those curious:

The Vortec 6000, or LQ4, is a V8 truck engine. It is a bored version of the Vortec 5300. Displacement is 6.0 L (364 in³) from 101.6 mm bore and 92 mm stroke. It is an iron/aluminum (note that 2000 model year engines had cast iron heads) design and produces 300-325 hp (224-242 kW) and 360-370 ft·lbf (488-502 N·m). LQ4s are built in Romulus, Michigan and Silao, Mexico.

That'* a nice power plant for your truck, Bill

1999 L36
AFH50M-05