when i first bought the car the previous owner had the fuel pump running direct... so i fixed that problem and changed the filter and ecu but the car is still throwing the code 43 which means fuel supply system... any ways any suggestions on what it could be... help me out plz i appreiciat it thanks

 

bump

 

any help??? i need to fix this problem fast help

 

well i did a lil research on here and most people say it's the o2 sensor... so i'm guessing to change that??? is this true will this fix the problem?? can somebody plz confirm that this really works??? thanx

 

I am having the same problem on a 93 Civic LX, that I just bought, the check engine light does not come on until I go down the road a few miles. I changed out the fuel filter and checked other components except O2 sensor which is next.