I have an A4 2.8 Quatrro B5 1998 and I think the mas has died auto data say it sould have 2.2volts at 3000rpm but it reading 0.4 on terminal 2. My car also runs on GAS but it souldn't make any difference as it a multipoint injection (better ecconomy). without going to Audi where would be the best place to get a replacement? also got a couple of un-known fault codes but cant remember the numbers will add them later.