My 1990 Celica GTS 2.2L non-turbo w/ 100 K miles is suddenly chocking in lower gears. Once she gets to 3rd gear (she is an automatic) she accelerates normally; however, getting there she is chocking and barely accelerating. 6 months ago I had the fuel injection flushed and well as air and fuel filters replaced. Could it be the pcv valve? Is my transmission about to go? Should I get the transmission flushed? Does anyone know where the pcv valve is located? One more question- how anyone used an engine restorer called "Z-Max"? Thanks in advance for your time.