Sorry to bring up fuel trims again, I know it is a complicated issue,just returned from a days outing, car ran impeccably (140ml rtrip) with top down and beautiful weather ,on return I read fuel trims at idle 650 or so L1 11.2 L2 8.6 shorts close to zero ran to 2k andLT1 went to 8.4 LT2 stayed the same. If the education that some of you more well versed members have been giving us is used this would seem to suggest a small vacuume leak or possibly a dirty sensor.Since the car is running so well should I just monitor or be pro active and clean Maf? Look for vac leaks? Or just drive it and enjoy. No emergency here just looking for wiser minds than mine to input.
Jeremy

 

The ECU is able to adjust for LTFT's in the teens, so the car will run well. But if there is a crack in the intake bellows or a failing gasket, vacuum hose, etc. it may get worse when you're on the road one of these days, so it would be a good idea to sort it out.