My mazda when accelerating sometimes jerks but stops if even pressure on gas

throtle pos sensor, when bad other sensors get the blame and recognized under the wrong code, then your in a panic because could be 20 things exc,cut alot of the headache start with tps then map sensor, i found out the frustrating way damn tps

Find a different shop , get scanned- LIVE DATA-, post code(s) here, before buying lots of parts. OR , my guess , rotted/cracked air intake hose and/or mass air flow.........