I just had the same problem today! We totally rebuilt the motor and when we hooked it all back up, that was the only code it populated. It was the mass air flow sensor. We never thought that would be it because it was fine before when we were working on the motor but after we couldn't figure anything else out...we plugged another one in just to see what it would say before we took it into the shop and it worked the code cleared! The part usually cost anywhere from 122-200.00 though :( e happened to have an old one from an old blazer laying around so we got lucky!
Trouble code P0102 means:Mass or volume circuit low input
Trouble code P0102 means:Mass or volume circuit low input
Trouble code P0102 means:Mass or volume circuit low input
Trouble code P0102 means:Mass or volume circuit low input
Trouble code P0102 means: MAF Sensor Circuit Low Frequency
Trouble code P0102 means: MAF Sensor Circuit Low Frequency
Trouble code P0102 means: MAF Sensor Circuit Low Frequency Try replacing the MAF sensor
PO101 Mass Air Flow (MAF) Sensor Circuit Low Frequency
IF IT'S A 3800, MAKE SURE THE O RINGS ARE ON THE PCV, AN EASY CHECK IS TO PLACE YOUR HAND OVER THE OIL FILL WITH THE ENGINE RUNNING, IF IT TRIES TO SUCK YOUR HAND INTO THE VALVE COVER THERE'S LIKELY AN O RING MISSING FROM THE PCV. THIS IS ONLY COMMON ON 3800'S.
Check all your grounds
Trouble code P0102 means: Mass or Volume Air Flow Circuit Low Input
what is fault code P0102 in a Chevy Tahoe?