Do these CODES mean impending DOOM?
BO516 H: Speedo Signal Malfunction
BO367 H: Right Actuator Feedback Open
Now for the first time I got the YELLOW engine light!! The code was:
PO420 H C: TWC System Low Efficiency Bank 1
Car has 19K miles. Mostly highway but driven hard whenever possible. The car drives good and exhibits no noticable problems.
Mods are: Haltech Trap/Kooks/High Flow Cats/X-Pipe/Z06 exhaust/3.42 gears and Torco. No tuning has been done. Car has never been to the dealer!!









