Contour Enthusiasts Group Archives Forums General Troubleshooting Who knows their stuff about Long Term and Short Term Fuel Trim on OBD-II?

Does disconnecting the computer for several hours effectively "clear" the computer, or is it still adapting from a pre-existing condition? I obviously had a vacuum leak, the injector-manifold seals were toast, but they're all new now, with new upper and lower gaskets, a new PCV valve, vacuum lines inspected for problems, etc. No more P0171 lean codes and it purrs like a kitten now but just for giggles I threw the scanner back on and saw these high trims. Lower than before, and possibly coming down (that's why I ask about clearing the computer) but still high. I don't hear any evidence of an exhaust leak and have no reason to believe one exists but I suppose it's possible.