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so i scan the car today these are the codes, also has a bad exhaust leak in front area 07 gs350 awd
p0711
p0102
All awd exhaust mid pipes leak, its due to fiberglass mating with tin covering thats surrounding the mid pipe. The mating traps mud, salt, water etc and slowly rusts out the pipe. Best to cut that tin off and remove the mating on both sides. Take the car to a muffler shop I fixed mine for 40 bucks. They sand and weld the leaks
As for the p0711 that for transmission, p0102 mas air flow. You can easily remove and clean the mas flow sensor, as far as the transmission ive never heard of that one. But I still think all your issues are due to your alternator not providing enough power. Did you test that?