91 200Q Mass Air Sensor

["Bernard, Charlie" <cbernard@bcsdcpost.gbcsdc.att.com>]

Has anyone ever had to replace a Mass Air Flow Sensor on any of the I5 Turbo 
motors? My 91 200Q began running extremely rich, after 2 days of checking 
everything within my power, I relented to going to my local dealer - Aggg! 
The short story is $126 later they tell me that the VAG1551 (Testing 
Instrument) indicates a bad Mass Air Flow Sensor. They ONLY want $650 for 
the part and about 3-4 hrs for further installation and testing of Injection 
system. Now for the bad news - they claim there are none of these "new" OEM 
sensors in the states and will take about 3 weeks to order one from Germany 
or maybe a 1 1/2 - 2 week time frame to rush it here for an extra $100 - 
ouch! I have located one out of a used one in NY - that has a 30 day 
warranty and they claim has been tested from a cold running to hot engine 
drivability test - all for only $335. I normally would never buy used parts 
 - generally dont think you get your moneys worth, however I really between a 
rock and a hard spot on this one. Any advice/experiences  would be 
appreciated.

Charlie Bernard
90 V8
91 200Q
88 951 S