i have a 2000 civic ex Auto STOCK 2 weeks ago the exhaust piping split cause it was really rusted have gotten it fixed but i suspect there may be another leak because i still smell fumes when i come to a stop, Today CEL came on this morning and i got these 5 codes : p0171, p0137, p0138, p0420, p1457 if i find another exhaust leak would that clear all these codes?

 

Reset the ECU to see whether all, some, or none of the codes returns.

 

yup i pulled the 7.5 fuse and none came back yet i still smell the fumes

 

Okay bro so thismorning only the P1457 came back

 

Start with the gas cap.