Ok well I went and talked to the guy today and it was the MAF that he replaced which is what I would have guessed. It wasn't reading more than 2 volts before and now with the new one it reads over 4.
Now the bad thing is that although that was obviously a problem, it didn't fix the stupid CEL....so I am going back again next week and he is gonna take a look at the intake gaskets and fuel pressure. I just wish I had time to look at this all myself, plus I don't have any heat in my garage so that makes it a pain too.
Thanks again guys
2001 Volvo S40-Perrin MBC@ 11psi, EST intake, 35% tint, still slow
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