Oh...and the engine codes were the same both times the CEL came on.
'00 Viper - Steel Grey (ROE smooth tubes, muffler delete)
'04 Subaru WRX wagon - The daily grind mobile
'97 540i - FOR SALE!
'87 Porsche 930 (B&B exhaust, SC cams, Garrett hybrid turbo, adjustable boost control, Andial fuel enrichment - 400 h.p.) - SOLD