Check Engine Light on problems....
 

i just bought a civic and the check engine light comes on AFTER YOU DRIVE IT FOR A WHILE....i did the check engine code and the code is 43 Fuel Supply System....what does that mean....please let me know what it is if you know...thanks... https://honda-tech.com/forums/images/smilies/emsad.gif

I would do a check of your fuel pressure. Pump might be going bad, or FPR could be going bad or filter could be getting clogged.

Might sound funny but does it have a gas cap? check and see if its tight.

Re: (upgraded)
 

thanks for the tip...i'll try it and see if it helps.....

Re: Check Engine Light on problems.... (civic_boi)
 

Code 43 usually means the O2 Sensor is lazy. So I suggest U change it. Had the code yesterday on mine. New O2 sensor and i'm fine.

O2 Sensor - $168 (Aftermarket::Not Universal)
O2 Sensor - $250 (Dealer)

B16A2