i'm telling you, there's probably nothing wrong with your car. don't look for probs in it where there aren't. :)

if the car drives well, you have no codes in your OBD, don't smell anything funny, hear anything funny, feel anything funny, or notice anything funny at all other than the exhaust glowing a tiny bit red at night, then you're probably just fine

here's a nice picture i happened across:



even though the filename is 'why_blowers_are_better_than_turbo", ignore it. blowers aren't better than turbos. might've been the case a decade ago, but technology and engineering has advanced to the point where turbos are much much better than blowers usually.
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Kenric Tam
1990 Volvo 740 base sedan (B230F)
My Volvo 'Project'
(Page is back up!)