Whats vortex? Are those MAFs used or remanufactured?

 

Update on my boost problem. Replacing the MAF had little impact. The next step was to check for boost leaks. The tennis ball method worked nicely. I found a 1mm sized hole in the L-shaped hose the connects the suction pump to the intake manifold. Waiting for parts to ship from Autohuas in Arizona. Next time I will check for leaks before buying parts

 

its good to keep an extra MAF around anyway, so not a total loss.

BTW, vortex = www.vwvortex.com the biggest audi/vw forum there is.

 

Replaced hose and suction pump thingy. Spiking 19-20psi.

 

Score!