[Vwdiesel] Bad maf on 2000 vw tdi

[Chris Jude]

Hey y'all,
I've had a couple strange things with the jetta this week. This morning i
was noticing a turbo hesitation, in 2nd gear around 3000rpm the car would
hesitate before the turbo kicked in. Then, this afternoon when i started
the car, it idles fine and then when i hit the throttle to go in 1st it
would grumble and smoke, then stalled. It did this a couple times till the
engine warmed up some, and now it seems to run alright, but the check
engine light is on. I'm running the same piedmont biodiesel fuel as always,
and am about 8500 miles into the last oil change.
I stopped by advance auto to check the cpu, and a mass air flow code came
up.
When i start the car now, it idles rough till it warms up, blowing some
blueish smoke. The check engine light comes on after 10-15 seconds.  After
warm up it runs alright, but the turbo seems to not kick in.  I can still
go highway speeds though, just takes longer.
Wanted to see if anyone had any advice, we were planning to drive to
atlanta this weekend for christmas.

Chris jude
2000 VW Jetta TDI - 238K miles
Pittsboro, NC

Sent from a mobile device, pardon any poor grammer