Ok, so i went on a road trip, and about half way back i noticed that my A/F gauge was reading way down from where it normaly was. and i also started getting really bad gas mileage. like 28mpg i usualy get 38 or so. so i finaly got a CEL and it was codes 41 and 43. 41 is the o2, but 43 is fuel system supply, what is that? also any one know where i can get an o2, i hate payin 225 for one around here thats the cheapest i found, i need asap as i drive 180 miles a day and gas mileage is starting to suck ***. BTW, i have a 92 dx hatch w/ jdm d15b vtec on a p28.

 

ttt

 

anyone?

 

unplug the battery for a few second and put it back on. i threw the 41 and 43 code before. resetted the ecu, and it went away.

41 and 43 has to do with ur O2 and ur fuel system possibly anything from filter to fuel pump.