Never Expected Jetta Boost Controller Failure

The pneumatic waste gate controller failed on my Volkswagen Jetta TDI.  It split right at the crimp in the middle.  As a temporary fix I wired it up back into place.  Oddly this temporary repair worked for about 8 months.  My goal was to see if it would work at all.  I ended up getting 8 months of service out of it.  In the end I found a source for the pneumatic solenoid on line.

boost_pneumatic_solenoid_450

It was a torturous road though.  I had spent over two years with an intermittent boost problem, with the ECU dropping into "limp mode" quite often.  I had replaced or cleaned most of the parts in the boost control system.