So I took the car in to get emissions and the thing failed, bad. It had twice the normal CO level.
Ocassionally when driving down the highway it will toss a CEL and stutter(not always at the same time). It usually does this at cruising speed and giving it gas clears it up. It idles fine, starts fine, has great power under load. In stop and go traffic i have no issues whatsoever.
I pulled the codes(I hate the inbetween bastard obdII setup BTW).
first threw a 55 - Lean Fuel monitor error and shortly after threw a 13 - O2 sensor error
The O2 is new
The plugs are new
the filter is new
Any ideas?