Hmm....cats are an interesting idea. I had trouble getting it to pass emissions testing recently. High NOx levels. Believe it or not the tech at Canadian Tire (yes I know....) cleaned the MAF and it passed.
The cam position sensor was replaced last year. When it failed all it caused was a rough startup. Never seemed to affect regular operation.
I have the Bentley manuals. I'll meter the coils and see what that shows. They are all original Bremi units as far as I can tell. Weird that 3 would go at once though.
'00 Viper - Steel Grey (ROE smooth tubes, RandomTech hi-flow cats, muffler delete)
'07 Infiniti G35 - Daily grind mobile
'04 Subaru WRX wagon - SOLD
'97 540i - SOLD
'87 Porsche 930 (B&B exhaust, SC cams, Garrett hybrid turbo, adjustable boost control, Andial fuel enrichment - 400 h.p.) - SOLD