Yeah, that guy's a real hoot... not the kind of guy I'd trust any of my cars to, even though he apparently does even fix something every now and then.
I've considered maybe it's an issue with the SAP, and I'm even thinking about installing a simulator and removing the SAP (since here in SC, we don't have emissions checks, seeing as NC and GA filter all our air of pollutants for us...). What's curious to me, though, is that I never get a P0492, only the P0491. If the SAP was going, wouldn't I get both? Also, I've read that if I get a Euro tune for the MS43, I can forget about the SAP altogether.
Hell, I'd almost rather deal with another oil leak...
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2003 E53 3.0i
DOB 10/15/2002
Sienna red, Savannah Beige Dakota leather
Type FA53, Engine M54B30
2018 G02 30i
DOB 4/21/18
Black Sapphire Metallic / Canberra Beige Vermasca leather
Engine B46O