I started my car(a 85' TA 305 TPI) up one morning and it had a crappy Idle to it. On the street, it jerked forward and back wildly and at stops it almost stalled out. Then after driving for a minute or two the car spit out a code 44. I went home and was already going to replace the plugs so I did and checked the wires. It still ran the same so I changed the fuel filter, cleaned out the IAC, adjusted the TPS to 0.550 volts, and replaced the O2 sensor with a bosch. Took it out and still ran like crap and spit out a code 44. I love my car and so do the ladies so someone please give me whatever help or suggestions you can. thanks

 

Pull the line to the MAF and see if it improves. If no help, verify the cable to the O2 sensor is OK.

Here a scan tool would show what the ECM is seeing.