PO705 is a short in the transmission range switch circuit. This is normally caused by one of the following.
Trouble code P0705 means: Transmission Range Sensor Circuit (PRNDL Input)
Trouble code P0500 means: Vehicle Speed Sensor A
After googling it is determined Code P0420 ( Catalytic converter effeciency below threshold)
Code 45 on a Honda Civic means the car is not getting proper fuel flow. All the major fuel components should be checked such as the map sensor, oxygen sensor, and fuel pump.
To fix a ratio on a 2000 Honda Civic transmission, follow the procedure stipulated in the users manual.
Trouble code P0705 means: Transmission Range Sensor Circuit (PRNDL Input) Need to replace the sensor
You will need to change the brakes and rotors on the Honda Civic to see if that fixes them. If not, take the car to a mechanic and have them fix the problem.
2004 Honda civic not giving good gas mpg
new gaS CAP
You don't fix it, you just replace it. After replacing it get an alinement.
The only thing you can do to them is change them.
i think there's a recall