Hey,

I recently bought a honda civic 2008 1.8l with 135k milage on it and having an issue running the car. Basically, I was driving and the engine light come on and off and there was no power when I tried to rev the gas/accelerator (only goes up to 15-16mph) and got really shaky. I scanned the car using a scanner and got 2 codes P0301 misfire engine cylinder 1 and code P0420 catalytic converter problem. I changed the spark plugs but the car is having the same problem. I will try to find out if there is any problem with the ignition coil but also have some symptoms of fuel injector like the exhaust has a white carbon emission. Also, I was having issues like overheating, and after driving a little while it gets cooled down. I tried to check the radiator and found there was no fluid on it but the coolant tank is still at a minimum level.  I really don't know what to do with it and also looking to change the catalytic converter but they are pretty expensive. I really need some professional advice to fix the car because I don't want the mechanic here to charge me any extra. Please help me out, Scotty. Thanks