You might want to try:Dwight said:This is the explanation from the 1991 Acura service manual:
Code 43: Most likely a problem in the left Oxygen sensor circuit or a problem in the left fuel supply system.
Code 44: Most likely a problem in the right Oxygen sensor circuit or a problem in the right fuel supply system.
How may miles does your car have? You might want to consider new O2 sensors. Do not buy them from a dealer or even aftermarket. They will be at least $150.00. Go to http://www.oxygensensors.com. I got mine for $55.00 a piece and the were OEM type sensors.