Togo

I have a code that mentions i have a low MAF voltage - I have disconnected battery to make the computer "relearn", I have reset codes. I have unplugged and reseated connections to the MAF but this code still comes back.

Is my MAF "toast"? Is there a way to test this with "basic" tools, or is swapping out a different MAF the only way to see if my SLP MAF is bad?

MattB

Unhooking the battery does not do much if anything on the C5.

I'd take a look at the wiring to the MAF, the wires can break internally. There are three wires, pink (power), blk/wht (ground), and yellow (signal). The ground point is above the starter, so its hard to get to that one. Maybe check to see if the ground wire and power wires are good, and then go from there. But, a different MAF would tell you as well.

BTW, I haven't tried one, but from what I've read the after market MAFs are not a good upgrade and can have a host of issues. I don't think I've heard of this one though.

Bill Curlee

Try cleaning the MAF .. They make a MAF spray but I use regular old brake parts cleaner on mine. Just remove the air filter assy, spray it in the MAF, let it evaporate reassemble and see if the issue is gone.

The tiny sensors (thermistors ) get dirty and dont sense correctly. Do you have a K&N filter. If the oil from ta oiled filter gets on the sensor wires, it can cause this issue.

BC